Finding the Third Proportional to 1,420,632 and 3,121,200

Step by Step Solution

1. Step 1: Write the proportion equation
   1,420,632 : 3,121,200 = 3,121,200 : x
2. Step 2: Convert to fraction form
   1,420,632/3,121,200 = 3,121,200/x
3. Step 3: Cross multiply
   1,420,632x = 3,121,200 × 3,121,200
4. Step 4: Simplify right side
   1,420,632x = 9,741,889,440,000
5. Step 5: Solve for x
   x = 9,741,889,440,000/1,420,632
6. Step 6: Final answer
   x = 6,857,433.48