Finding the Third Proportional to 8,216,160 and 12,019,920

Step by Step Solution

1. Step 1: Write the proportion equation
   8,216,160 : 12,019,920 = 12,019,920 : x
2. Step 2: Convert to fraction form
   8,216,160/12,019,920 = 12,019,920/x
3. Step 3: Cross multiply
   8,216,160x = 12,019,920 × 12,019,920
4. Step 4: Simplify right side
   8,216,160x = 144,478,476,806,400
5. Step 5: Solve for x
   x = 144,478,476,806,400/8,216,160
6. Step 6: Final answer
   x = 17,584,671.77