Finding the Third Proportional to 3,645,564 and 7,977,348

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,564 : 7,977,348 = 7,977,348 : x
2. Step 2: Convert to fraction form
   3,645,564/7,977,348 = 7,977,348/x
3. Step 3: Cross multiply
   3,645,564x = 7,977,348 × 7,977,348
4. Step 4: Simplify right side
   3,645,564x = 63,638,081,113,104
5. Step 5: Solve for x
   x = 63,638,081,113,104/3,645,564
6. Step 6: Final answer
   x = 17,456,306.11