Finding the Third Proportional to 5,912,742 and 12,748,398

Step by Step Solution

1. Step 1: Write the proportion equation
   5,912,742 : 12,748,398 = 12,748,398 : x
2. Step 2: Convert to fraction form
   5,912,742/12,748,398 = 12,748,398/x
3. Step 3: Cross multiply
   5,912,742x = 12,748,398 × 12,748,398
4. Step 4: Simplify right side
   5,912,742x = 162,521,651,566,404
5. Step 5: Solve for x
   x = 162,521,651,566,404/5,912,742
6. Step 6: Final answer
   x = 27,486,680.73