Finding the Third Proportional to 3,645,604 and 7,977,432

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,604 : 7,977,432 = 7,977,432 : x
2. Step 2: Convert to fraction form
   3,645,604/7,977,432 = 7,977,432/x
3. Step 3: Cross multiply
   3,645,604x = 7,977,432 × 7,977,432
4. Step 4: Simplify right side
   3,645,604x = 63,639,421,314,624
5. Step 5: Solve for x
   x = 63,639,421,314,624/3,645,604
6. Step 6: Final answer
   x = 17,456,482.19