Finding the Third Proportional to 421,119 and 898,229.25

Step by Step Solution

1. Step 1: Write the proportion equation
   421,119 : 898,229.25 = 898,229.25 : x
2. Step 2: Convert to fraction form
   421,119/898,229.25 = 898,229.25/x
3. Step 3: Cross multiply
   421,119x = 898,229.25 × 898,229.25
4. Step 4: Simplify right side
   421,119x = 806,815,785,555.56
5. Step 5: Solve for x
   x = 806,815,785,555.56/421,119
6. Step 6: Final answer
   x = 1,915,885.50