Finding the Third Proportional to 5,599,700 and 8,687,264

Step by Step Solution

1. Step 1: Write the proportion equation
   5,599,700 : 8,687,264 = 8,687,264 : x
2. Step 2: Convert to fraction form
   5,599,700/8,687,264 = 8,687,264/x
3. Step 3: Cross multiply
   5,599,700x = 8,687,264 × 8,687,264
4. Step 4: Simplify right side
   5,599,700x = 75,468,555,805,696
5. Step 5: Solve for x
   x = 75,468,555,805,696/5,599,700
6. Step 6: Final answer
   x = 13,477,249.82