Finding the Third Proportional to 2,161,218 and 4,702,980

Step by Step Solution

1. Step 1: Write the proportion equation
   2,161,218 : 4,702,980 = 4,702,980 : x
2. Step 2: Convert to fraction form
   2,161,218/4,702,980 = 4,702,980/x
3. Step 3: Cross multiply
   2,161,218x = 4,702,980 × 4,702,980
4. Step 4: Simplify right side
   2,161,218x = 22,118,020,880,400
5. Step 5: Solve for x
   x = 22,118,020,880,400/2,161,218
6. Step 6: Final answer
   x = 10,234,053.61