Finding the Third Proportional to 3,485,406 and 7,641,564

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485,406 : 7,641,564 = 7,641,564 : x
2. Step 2: Convert to fraction form
   3,485,406/7,641,564 = 7,641,564/x
3. Step 3: Cross multiply
   3,485,406x = 7,641,564 × 7,641,564
4. Step 4: Simplify right side
   3,485,406x = 58,393,500,366,096
5. Step 5: Solve for x
   x = 58,393,500,366,096/3,485,406
6. Step 6: Final answer
   x = 16,753,715.45