Finding the Third Proportional to 8,869,472 and 12,357,408

Step by Step Solution

1. Step 1: Write the proportion equation
   8,869,472 : 12,357,408 = 12,357,408 : x
2. Step 2: Convert to fraction form
   8,869,472/12,357,408 = 12,357,408/x
3. Step 3: Cross multiply
   8,869,472x = 12,357,408 × 12,357,408
4. Step 4: Simplify right side
   8,869,472x = 152,705,532,478,464
5. Step 5: Solve for x
   x = 152,705,532,478,464/8,869,472
6. Step 6: Final answer
   x = 17,216,981.18