Finding the Third Proportional to 4,045,192 and 8,690,704

Step by Step Solution

1. Step 1: Write the proportion equation
   4,045,192 : 8,690,704 = 8,690,704 : x
2. Step 2: Convert to fraction form
   4,045,192/8,690,704 = 8,690,704/x
3. Step 3: Cross multiply
   4,045,192x = 8,690,704 × 8,690,704
4. Step 4: Simplify right side
   4,045,192x = 75,528,336,015,616
5. Step 5: Solve for x
   x = 75,528,336,015,616/4,045,192
6. Step 6: Final answer
   x = 18,671,137.49