Finding the Third Proportional to 7,766,238 and 12,156,372

Step by Step Solution

1. Step 1: Write the proportion equation
   7,766,238 : 12,156,372 = 12,156,372 : x
2. Step 2: Convert to fraction form
   7,766,238/12,156,372 = 12,156,372/x
3. Step 3: Cross multiply
   7,766,238x = 12,156,372 × 12,156,372
4. Step 4: Simplify right side
   7,766,238x = 147,777,380,202,384
5. Step 5: Solve for x
   x = 147,777,380,202,384/7,766,238
6. Step 6: Final answer
   x = 19,028,180.72