Finding the Third Proportional to 488,291.50 and 1,071,128.75

Step by Step Solution

1. Step 1: Write the proportion equation
   488,291.50 : 1,071,128.75 = 1,071,128.75 : x
2. Step 2: Convert to fraction form
   488,291.50/1,071,128.75 = 1,071,128.75/x
3. Step 3: Cross multiply
   488,291.50x = 1,071,128.75 × 1,071,128.75
4. Step 4: Simplify right side
   488,291.50x = 1,147,316,799,076.56
5. Step 5: Solve for x
   x = 1,147,316,799,076.56/488,291.50
6. Step 6: Final answer
   x = 2,349,655.48