Finding the Third Proportional to 3,920,912 and 8,493,208

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920,912 : 8,493,208 = 8,493,208 : x
2. Step 2: Convert to fraction form
   3,920,912/8,493,208 = 8,493,208/x
3. Step 3: Cross multiply
   3,920,912x = 8,493,208 × 8,493,208
4. Step 4: Simplify right side
   3,920,912x = 72,134,582,131,264
5. Step 5: Solve for x
   x = 72,134,582,131,264/3,920,912
6. Step 6: Final answer
   x = 18,397,398.90