Finding the Third Proportional to 3,734,259 and 8,191,398

Step by Step Solution

1. Step 1: Write the proportion equation
   3,734,259 : 8,191,398 = 8,191,398 : x
2. Step 2: Convert to fraction form
   3,734,259/8,191,398 = 8,191,398/x
3. Step 3: Cross multiply
   3,734,259x = 8,191,398 × 8,191,398
4. Step 4: Simplify right side
   3,734,259x = 67,099,001,194,404
5. Step 5: Solve for x
   x = 67,099,001,194,404/3,734,259
6. Step 6: Final answer
   x = 17,968,491.53