Finding the Third Proportional to 7,881,294 and 16,978,396

Step by Step Solution

1. Step 1: Write the proportion equation
   7,881,294 : 16,978,396 = 16,978,396 : x
2. Step 2: Convert to fraction form
   7,881,294/16,978,396 = 16,978,396/x
3. Step 3: Cross multiply
   7,881,294x = 16,978,396 × 16,978,396
4. Step 4: Simplify right side
   7,881,294x = 288,265,930,732,816
5. Step 5: Solve for x
   x = 288,265,930,732,816/7,881,294
6. Step 6: Final answer
   x = 36,575,964.65