Finding the Third Proportional to 12,142,518 and 18,462,414

Step by Step Solution

1. Step 1: Write the proportion equation
   12,142,518 : 18,462,414 = 18,462,414 : x
2. Step 2: Convert to fraction form
   12,142,518/18,462,414 = 18,462,414/x
3. Step 3: Cross multiply
   12,142,518x = 18,462,414 × 18,462,414
4. Step 4: Simplify right side
   12,142,518x = 340,860,730,707,396
5. Step 5: Solve for x
   x = 340,860,730,707,396/12,142,518
6. Step 6: Final answer
   x = 28,071,667.73