Finding the Third Proportional to 5,451,540 and 8,553,047

Step by Step Solution

1. Step 1: Write the proportion equation
   5,451,540 : 8,553,047 = 8,553,047 : x
2. Step 2: Convert to fraction form
   5,451,540/8,553,047 = 8,553,047/x
3. Step 3: Cross multiply
   5,451,540x = 8,553,047 × 8,553,047
4. Step 4: Simplify right side
   5,451,540x = 73,154,612,984,209
5. Step 5: Solve for x
   x = 73,154,612,984,209/5,451,540
6. Step 6: Final answer
   x = 13,419,072.96