Finding the Third Proportional to 3,645,484 and 7,977,200

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,484 : 7,977,200 = 7,977,200 : x
2. Step 2: Convert to fraction form
   3,645,484/7,977,200 = 7,977,200/x
3. Step 3: Cross multiply
   3,645,484x = 7,977,200 × 7,977,200
4. Step 4: Simplify right side
   3,645,484x = 63,635,719,840,000
5. Step 5: Solve for x
   x = 63,635,719,840,000/3,645,484
6. Step 6: Final answer
   x = 17,456,041.46