Finding the Third Proportional to 7,874,521.31 and 12,147,577.59

Step by Step Solution

1. Step 1: Write the proportion equation
   7,874,521.31 : 12,147,577.59 = 12,147,577.59 : x
2. Step 2: Convert to fraction form
   7,874,521.31/12,147,577.59 = 12,147,577.59/x
3. Step 3: Cross multiply
   7,874,521.31x = 12,147,577.59 × 12,147,577.59
4. Step 4: Simplify right side
   7,874,521.31x = 147,563,641,396,177.03
5. Step 5: Solve for x
   x = 147,563,641,396,177.03/7,874,521.31
6. Step 6: Final answer
   x = 18,739,379.26