Finding the Third Proportional to 236,616 and 516,057.75

Step by Step Solution

1. Step 1: Write the proportion equation
   236,616 : 516,057.75 = 516,057.75 : x
2. Step 2: Convert to fraction form
   236,616/516,057.75 = 516,057.75/x
3. Step 3: Cross multiply
   236,616x = 516,057.75 × 516,057.75
4. Step 4: Simplify right side
   236,616x = 266,315,601,335.06
5. Step 5: Solve for x
   x = 266,315,601,335.06/236,616
6. Step 6: Final answer
   x = 1,125,518.14