Finding the Third Proportional to 3,645,584 and 7,977,392

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,584 : 7,977,392 = 7,977,392 : x
2. Step 2: Convert to fraction form
   3,645,584/7,977,392 = 7,977,392/x
3. Step 3: Cross multiply
   3,645,584x = 7,977,392 × 7,977,392
4. Step 4: Simplify right side
   3,645,584x = 63,638,783,121,664
5. Step 5: Solve for x
   x = 63,638,783,121,664/3,645,584
6. Step 6: Final answer
   x = 17,456,402.90