Finding the Third Proportional to 488,830.50 and 715,745

Step by Step Solution

1. Step 1: Write the proportion equation
   488,830.50 : 715,745 = 715,745 : x
2. Step 2: Convert to fraction form
   488,830.50/715,745 = 715,745/x
3. Step 3: Cross multiply
   488,830.50x = 715,745 × 715,745
4. Step 4: Simplify right side
   488,830.50x = 512,290,905,025
5. Step 5: Solve for x
   x = 512,290,905,025/488,830.50
6. Step 6: Final answer
   x = 1,047,992.92