Finding the Third Proportional to 2,198,140 and 4,632,440

Step by Step Solution

1. Step 1: Write the proportion equation
   2,198,140 : 4,632,440 = 4,632,440 : x
2. Step 2: Convert to fraction form
   2,198,140/4,632,440 = 4,632,440/x
3. Step 3: Cross multiply
   2,198,140x = 4,632,440 × 4,632,440
4. Step 4: Simplify right side
   2,198,140x = 21,459,500,353,600
5. Step 5: Solve for x
   x = 21,459,500,353,600/2,198,140
6. Step 6: Final answer
   x = 9,762,572.15