Finding the Third Proportional to 5,607,850 and 8,402,419

Step by Step Solution

1. Step 1: Write the proportion equation
   5,607,850 : 8,402,419 = 8,402,419 : x
2. Step 2: Convert to fraction form
   5,607,850/8,402,419 = 8,402,419/x
3. Step 3: Cross multiply
   5,607,850x = 8,402,419 × 8,402,419
4. Step 4: Simplify right side
   5,607,850x = 70,600,645,051,561
5. Step 5: Solve for x
   x = 70,600,645,051,561/5,607,850
6. Step 6: Final answer
   x = 12,589,610.11