Finding the Third Proportional to 4,197,742 and 8,899,940

Step by Step Solution

1. Step 1: Write the proportion equation
   4,197,742 : 8,899,940 = 8,899,940 : x
2. Step 2: Convert to fraction form
   4,197,742/8,899,940 = 8,899,940/x
3. Step 3: Cross multiply
   4,197,742x = 8,899,940 × 8,899,940
4. Step 4: Simplify right side
   4,197,742x = 79,208,932,003,600
5. Step 5: Solve for x
   x = 79,208,932,003,600/4,197,742
6. Step 6: Final answer
   x = 18,869,414.08