Finding the Third Proportional to 510,124.50 and 762,521.25

Step by Step Solution

1. Step 1: Write the proportion equation
   510,124.50 : 762,521.25 = 762,521.25 : x
2. Step 2: Convert to fraction form
   510,124.50/762,521.25 = 762,521.25/x
3. Step 3: Cross multiply
   510,124.50x = 762,521.25 × 762,521.25
4. Step 4: Simplify right side
   510,124.50x = 581,438,656,701.56
5. Step 5: Solve for x
   x = 581,438,656,701.56/510,124.50
6. Step 6: Final answer
   x = 1,139,797.55