Finding the Third Proportional to 3,645,432 and 7,977,417

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,432 : 7,977,417 = 7,977,417 : x
2. Step 2: Convert to fraction form
   3,645,432/7,977,417 = 7,977,417/x
3. Step 3: Cross multiply
   3,645,432x = 7,977,417 × 7,977,417
4. Step 4: Simplify right side
   3,645,432x = 63,639,181,991,889
5. Step 5: Solve for x
   x = 63,639,181,991,889/3,645,432
6. Step 6: Final answer
   x = 17,457,240.18