Finding the Third Proportional to 3,948,072 and 8,495,040

Step by Step Solution

1. Step 1: Write the proportion equation
   3,948,072 : 8,495,040 = 8,495,040 : x
2. Step 2: Convert to fraction form
   3,948,072/8,495,040 = 8,495,040/x
3. Step 3: Cross multiply
   3,948,072x = 8,495,040 × 8,495,040
4. Step 4: Simplify right side
   3,948,072x = 72,165,704,601,600
5. Step 5: Solve for x
   x = 72,165,704,601,600/3,948,072
6. Step 6: Final answer
   x = 18,278,720.50