Finding the Third Proportional to 20,358,662 and 42,134,422

Step by Step Solution

1. Step 1: Write the proportion equation
   20,358,662 : 42,134,422 = 42,134,422 : x
2. Step 2: Convert to fraction form
   20,358,662/42,134,422 = 42,134,422/x
3. Step 3: Cross multiply
   20,358,662x = 42,134,422 × 42,134,422
4. Step 4: Simplify right side
   20,358,662x = 1,775,309,517,274,084
5. Step 5: Solve for x
   x = 1,775,309,517,274,084/20,358,662
6. Step 6: Final answer
   x = 87,201,679.43