Finding the Third Proportional to 2,708,739 and 5,641,681.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,708,739 : 5,641,681.50 = 5,641,681.50 : x
2. Step 2: Convert to fraction form
   2,708,739/5,641,681.50 = 5,641,681.50/x
3. Step 3: Cross multiply
   2,708,739x = 5,641,681.50 × 5,641,681.50
4. Step 4: Simplify right side
   2,708,739x = 31,828,570,147,442.25
5. Step 5: Solve for x
   x = 31,828,570,147,442.25/2,708,739
6. Step 6: Final answer
   x = 11,750,327.42