Finding the Third Proportional to 3,664,688 and 7,979,966

Step by Step Solution

1. Step 1: Write the proportion equation
   3,664,688 : 7,979,966 = 7,979,966 : x
2. Step 2: Convert to fraction form
   3,664,688/7,979,966 = 7,979,966/x
3. Step 3: Cross multiply
   3,664,688x = 7,979,966 × 7,979,966
4. Step 4: Simplify right side
   3,664,688x = 63,679,857,361,156
5. Step 5: Solve for x
   x = 63,679,857,361,156/3,664,688
6. Step 6: Final answer
   x = 17,376,610.88