Finding the Third Proportional to 5,615,604 and 8,688,006

Step by Step Solution

1. Step 1: Write the proportion equation
   5,615,604 : 8,688,006 = 8,688,006 : x
2. Step 2: Convert to fraction form
   5,615,604/8,688,006 = 8,688,006/x
3. Step 3: Cross multiply
   5,615,604x = 8,688,006 × 8,688,006
4. Step 4: Simplify right side
   5,615,604x = 75,481,448,256,036
5. Step 5: Solve for x
   x = 75,481,448,256,036/5,615,604
6. Step 6: Final answer
   x = 13,441,376.61