Finding the Third Proportional to 145,209.94 and 307,726.69

Step by Step Solution

1. Step 1: Write the proportion equation
   145,209.94 : 307,726.69 = 307,726.69 : x
2. Step 2: Convert to fraction form
   145,209.94/307,726.69 = 307,726.69/x
3. Step 3: Cross multiply
   145,209.94x = 307,726.69 × 307,726.69
4. Step 4: Simplify right side
   145,209.94x = 94,695,714,199.72
5. Step 5: Solve for x
   x = 94,695,714,199.72/145,209.94
6. Step 6: Final answer
   x = 652,129.71