Finding the Third Proportional to 678,619,873,726.50 and 1,012,044,898,309.50

Step by Step Solution

1. Step 1: Write the proportion equation
   678,619,873,726.50 : 1,012,044,898,309.50 = 1,012,044,898,309.50 : x
2. Step 2: Convert to fraction form
   678,619,873,726.50/1,012,044,898,309.50 = 1,012,044,898,309.50/x
3. Step 3: Cross multiply
   678,619,873,726.50x = 1,012,044,898,309.50 × 1,012,044,898,309.50
4. Step 4: Simplify right side
   678,619,873,726.50x = 1,024,234,876,194,286,190,198,784
5. Step 5: Solve for x
   x = 1,024,234,876,194,286,190,198,784/678,619,873,726.50
6. Step 6: Final answer
   x = 1,509,291,012,315.80