Finding the Third Proportional to 5,607,852 and 8,402,422

Step by Step Solution

1. Step 1: Write the proportion equation
   5,607,852 : 8,402,422 = 8,402,422 : x
2. Step 2: Convert to fraction form
   5,607,852/8,402,422 = 8,402,422/x
3. Step 3: Cross multiply
   5,607,852x = 8,402,422 × 8,402,422
4. Step 4: Simplify right side
   5,607,852x = 70,600,695,466,084
5. Step 5: Solve for x
   x = 70,600,695,466,084/5,607,852
6. Step 6: Final answer
   x = 12,589,614.61