Finding the Third Proportional to 7,664,436 and 10,656,678

Step by Step Solution

1. Step 1: Write the proportion equation
   7,664,436 : 10,656,678 = 10,656,678 : x
2. Step 2: Convert to fraction form
   7,664,436/10,656,678 = 10,656,678/x
3. Step 3: Cross multiply
   7,664,436x = 10,656,678 × 10,656,678
4. Step 4: Simplify right side
   7,664,436x = 113,564,785,995,684
5. Step 5: Solve for x
   x = 113,564,785,995,684/7,664,436
6. Step 6: Final answer
   x = 14,817,109.31