Finding the Third Proportional to 489,008 and 748,042.50

Step by Step Solution

1. Step 1: Write the proportion equation
   489,008 : 748,042.50 = 748,042.50 : x
2. Step 2: Convert to fraction form
   489,008/748,042.50 = 748,042.50/x
3. Step 3: Cross multiply
   489,008x = 748,042.50 × 748,042.50
4. Step 4: Simplify right side
   489,008x = 559,567,581,806.25
5. Step 5: Solve for x
   x = 559,567,581,806.25/489,008
6. Step 6: Final answer
   x = 1,144,291.26