Finding the Third Proportional to 5,612,589 and 12,123,306

Step by Step Solution

1. Step 1: Write the proportion equation
   5,612,589 : 12,123,306 = 12,123,306 : x
2. Step 2: Convert to fraction form
   5,612,589/12,123,306 = 12,123,306/x
3. Step 3: Cross multiply
   5,612,589x = 12,123,306 × 12,123,306
4. Step 4: Simplify right side
   5,612,589x = 146,974,548,369,636
5. Step 5: Solve for x
   x = 146,974,548,369,636/5,612,589
6. Step 6: Final answer
   x = 26,186,586.68