Finding the Third Proportional to 677,443.50 and 928,945.13

Step by Step Solution

1. Step 1: Write the proportion equation
   677,443.50 : 928,945.13 = 928,945.13 : x
2. Step 2: Convert to fraction form
   677,443.50/928,945.13 = 928,945.13/x
3. Step 3: Cross multiply
   677,443.50x = 928,945.13 × 928,945.13
4. Step 4: Simplify right side
   677,443.50x = 862,939,045,261.27
5. Step 5: Solve for x
   x = 862,939,045,261.27/677,443.50
6. Step 6: Final answer
   x = 1,273,817.00