Finding the Third Proportional to 5,187,956 and 8,287,842

Step by Step Solution

1. Step 1: Write the proportion equation
   5,187,956 : 8,287,842 = 8,287,842 : x
2. Step 2: Convert to fraction form
   5,187,956/8,287,842 = 8,287,842/x
3. Step 3: Cross multiply
   5,187,956x = 8,287,842 × 8,287,842
4. Step 4: Simplify right side
   5,187,956x = 68,688,325,016,964
5. Step 5: Solve for x
   x = 68,688,325,016,964/5,187,956
6. Step 6: Final answer
   x = 13,239,959.05