Finding the Third Proportional to 510,021 and 749,479.50

Step by Step Solution

1. Step 1: Write the proportion equation
   510,021 : 749,479.50 = 749,479.50 : x
2. Step 2: Convert to fraction form
   510,021/749,479.50 = 749,479.50/x
3. Step 3: Cross multiply
   510,021x = 749,479.50 × 749,479.50
4. Step 4: Simplify right side
   510,021x = 561,719,520,920.25
5. Step 5: Solve for x
   x = 561,719,520,920.25/510,021
6. Step 6: Final answer
   x = 1,101,365.47