Finding the Third Proportional to 4,215,672 and 9,070,758

Step by Step Solution

1. Step 1: Write the proportion equation
   4,215,672 : 9,070,758 = 9,070,758 : x
2. Step 2: Convert to fraction form
   4,215,672/9,070,758 = 9,070,758/x
3. Step 3: Cross multiply
   4,215,672x = 9,070,758 × 9,070,758
4. Step 4: Simplify right side
   4,215,672x = 82,278,650,694,564
5. Step 5: Solve for x
   x = 82,278,650,694,564/4,215,672
6. Step 6: Final answer
   x = 19,517,327.41