Finding the Third Proportional to 3,988,246 and 8,698,292

Step by Step Solution

1. Step 1: Write the proportion equation
   3,988,246 : 8,698,292 = 8,698,292 : x
2. Step 2: Convert to fraction form
   3,988,246/8,698,292 = 8,698,292/x
3. Step 3: Cross multiply
   3,988,246x = 8,698,292 × 8,698,292
4. Step 4: Simplify right side
   3,988,246x = 75,660,283,717,264
5. Step 5: Solve for x
   x = 75,660,283,717,264/3,988,246
6. Step 6: Final answer
   x = 18,970,816.67