Finding the Third Proportional to 5,354,817 and 8,157,726

Step by Step Solution

1. Step 1: Write the proportion equation
   5,354,817 : 8,157,726 = 8,157,726 : x
2. Step 2: Convert to fraction form
   5,354,817/8,157,726 = 8,157,726/x
3. Step 3: Cross multiply
   5,354,817x = 8,157,726 × 8,157,726
4. Step 4: Simplify right side
   5,354,817x = 66,548,493,491,076
5. Step 5: Solve for x
   x = 66,548,493,491,076/5,354,817
6. Step 6: Final answer
   x = 12,427,781.10