Finding the Third Proportional to 678,467.25 and 1,426,675.50

Step by Step Solution

1. Step 1: Write the proportion equation
   678,467.25 : 1,426,675.50 = 1,426,675.50 : x
2. Step 2: Convert to fraction form
   678,467.25/1,426,675.50 = 1,426,675.50/x
3. Step 3: Cross multiply
   678,467.25x = 1,426,675.50 × 1,426,675.50
4. Step 4: Simplify right side
   678,467.25x = 2,035,402,982,300.25
5. Step 5: Solve for x
   x = 2,035,402,982,300.25/678,467.25
6. Step 6: Final answer
   x = 3,000,001.82