Finding the Third Proportional to 4,272,220 and 6,612,880

Step by Step Solution

1. Step 1: Write the proportion equation
   4,272,220 : 6,612,880 = 6,612,880 : x
2. Step 2: Convert to fraction form
   4,272,220/6,612,880 = 6,612,880/x
3. Step 3: Cross multiply
   4,272,220x = 6,612,880 × 6,612,880
4. Step 4: Simplify right side
   4,272,220x = 43,730,181,894,400
5. Step 5: Solve for x
   x = 43,730,181,894,400/4,272,220
6. Step 6: Final answer
   x = 10,235,938.67