Finding the Third Proportional to 3,676,397 and 8,078,472

Step by Step Solution

1. Step 1: Write the proportion equation
   3,676,397 : 8,078,472 = 8,078,472 : x
2. Step 2: Convert to fraction form
   3,676,397/8,078,472 = 8,078,472/x
3. Step 3: Cross multiply
   3,676,397x = 8,078,472 × 8,078,472
4. Step 4: Simplify right side
   3,676,397x = 65,261,709,854,784
5. Step 5: Solve for x
   x = 65,261,709,854,784/3,676,397
6. Step 6: Final answer
   x = 17,751,540.40