Finding the Third Proportional to 488,002.50 and 729,131.25

Step by Step Solution

1. Step 1: Write the proportion equation
   488,002.50 : 729,131.25 = 729,131.25 : x
2. Step 2: Convert to fraction form
   488,002.50/729,131.25 = 729,131.25/x
3. Step 3: Cross multiply
   488,002.50x = 729,131.25 × 729,131.25
4. Step 4: Simplify right side
   488,002.50x = 531,632,379,726.56
5. Step 5: Solve for x
   x = 531,632,379,726.56/488,002.50
6. Step 6: Final answer
   x = 1,089,405.03