Finding the Third Proportional to 231,663 and 502,561.50

Step by Step Solution

1. Step 1: Write the proportion equation
   231,663 : 502,561.50 = 502,561.50 : x
2. Step 2: Convert to fraction form
   231,663/502,561.50 = 502,561.50/x
3. Step 3: Cross multiply
   231,663x = 502,561.50 × 502,561.50
4. Step 4: Simplify right side
   231,663x = 252,568,061,282.25
5. Step 5: Solve for x
   x = 252,568,061,282.25/231,663
6. Step 6: Final answer
   x = 1,090,239.10