Finding the Third Proportional to 407,558 and 898,060

Step by Step Solution

1. Step 1: Write the proportion equation
   407,558 : 898,060 = 898,060 : x
2. Step 2: Convert to fraction form
   407,558/898,060 = 898,060/x
3. Step 3: Cross multiply
   407,558x = 898,060 × 898,060
4. Step 4: Simplify right side
   407,558x = 806,511,763,600
5. Step 5: Solve for x
   x = 806,511,763,600/407,558
6. Step 6: Final answer
   x = 1,978,888.31