Finding the Third Proportional to 3,676,407 and 8,078,493

Step by Step Solution

1. Step 1: Write the proportion equation
   3,676,407 : 8,078,493 = 8,078,493 : x
2. Step 2: Convert to fraction form
   3,676,407/8,078,493 = 8,078,493/x
3. Step 3: Cross multiply
   3,676,407x = 8,078,493 × 8,078,493
4. Step 4: Simplify right side
   3,676,407x = 65,262,049,151,049
5. Step 5: Solve for x
   x = 65,262,049,151,049/3,676,407
6. Step 6: Final answer
   x = 17,751,584.40