Finding the Third Proportional to 5,187,776 and 8,287,584

Step by Step Solution

1. Step 1: Write the proportion equation
   5,187,776 : 8,287,584 = 8,287,584 : x
2. Step 2: Convert to fraction form
   5,187,776/8,287,584 = 8,287,584/x
3. Step 3: Cross multiply
   5,187,776x = 8,287,584 × 8,287,584
4. Step 4: Simplify right side
   5,187,776x = 68,684,048,557,056
5. Step 5: Solve for x
   x = 68,684,048,557,056/5,187,776
6. Step 6: Final answer
   x = 13,239,594.11