Finding the Third Proportional to 3,920,940 and 8,493,264

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920,940 : 8,493,264 = 8,493,264 : x
2. Step 2: Convert to fraction form
   3,920,940/8,493,264 = 8,493,264/x
3. Step 3: Cross multiply
   3,920,940x = 8,493,264 × 8,493,264
4. Step 4: Simplify right side
   3,920,940x = 72,135,533,373,696
5. Step 5: Solve for x
   x = 72,135,533,373,696/3,920,940
6. Step 6: Final answer
   x = 18,397,510.13