Finding the Third Proportional to 5,648,454 and 8,620,477

Step by Step Solution

1. Step 1: Write the proportion equation
   5,648,454 : 8,620,477 = 8,620,477 : x
2. Step 2: Convert to fraction form
   5,648,454/8,620,477 = 8,620,477/x
3. Step 3: Cross multiply
   5,648,454x = 8,620,477 × 8,620,477
4. Step 4: Simplify right side
   5,648,454x = 74,312,623,707,529
5. Step 5: Solve for x
   x = 74,312,623,707,529/5,648,454
6. Step 6: Final answer
   x = 13,156,276.69