Finding the Third Proportional to 2,572,419.50 and 5,587,687

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572,419.50 : 5,587,687 = 5,587,687 : x
2. Step 2: Convert to fraction form
   2,572,419.50/5,587,687 = 5,587,687/x
3. Step 3: Cross multiply
   2,572,419.50x = 5,587,687 × 5,587,687
4. Step 4: Simplify right side
   2,572,419.50x = 31,222,246,009,969
5. Step 5: Solve for x
   x = 31,222,246,009,969/2,572,419.50
6. Step 6: Final answer
   x = 12,137,307.31