Finding the Third Proportional to 672,714 and 1,038,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   672,714 : 1,038,815.50 = 1,038,815.50 : x
2. Step 2: Convert to fraction form
   672,714/1,038,815.50 = 1,038,815.50/x
3. Step 3: Cross multiply
   672,714x = 1,038,815.50 × 1,038,815.50
4. Step 4: Simplify right side
   672,714x = 1,079,137,643,040.25
5. Step 5: Solve for x
   x = 1,079,137,643,040.25/672,714
6. Step 6: Final answer
   x = 1,604,155.17