Finding the Third Proportional to 980,220 and 2,123,288

Step by Step Solution

1. Step 1: Write the proportion equation
   980,220 : 2,123,288 = 2,123,288 : x
2. Step 2: Convert to fraction form
   980,220/2,123,288 = 2,123,288/x
3. Step 3: Cross multiply
   980,220x = 2,123,288 × 2,123,288
4. Step 4: Simplify right side
   980,220x = 4,508,351,930,944
5. Step 5: Solve for x
   x = 4,508,351,930,944/980,220
6. Step 6: Final answer
   x = 4,599,326.61