Finding the Third Proportional to 572,314.50 and 911,009.25

Step by Step Solution

1. Step 1: Write the proportion equation
   572,314.50 : 911,009.25 = 911,009.25 : x
2. Step 2: Convert to fraction form
   572,314.50/911,009.25 = 911,009.25/x
3. Step 3: Cross multiply
   572,314.50x = 911,009.25 × 911,009.25
4. Step 4: Simplify right side
   572,314.50x = 829,937,853,585.56
5. Step 5: Solve for x
   x = 829,937,853,585.56/572,314.50
6. Step 6: Final answer
   x = 1,450,142.98