Finding the Third Proportional to 680,789.18 and 1,604,779.59

Step by Step Solution

1. Step 1: Write the proportion equation
   680,789.18 : 1,604,779.59 = 1,604,779.59 : x
2. Step 2: Convert to fraction form
   680,789.18/1,604,779.59 = 1,604,779.59/x
3. Step 3: Cross multiply
   680,789.18x = 1,604,779.59 × 1,604,779.59
4. Step 4: Simplify right side
   680,789.18x = 2,575,317,544,516.42
5. Step 5: Solve for x
   x = 2,575,317,544,516.42/680,789.18
6. Step 6: Final answer
   x = 3,782,841.47