Finding the Third Proportional to 610,440 and 898,010

Step by Step Solution

1. Step 1: Write the proportion equation
   610,440 : 898,010 = 898,010 : x
2. Step 2: Convert to fraction form
   610,440/898,010 = 898,010/x
3. Step 3: Cross multiply
   610,440x = 898,010 × 898,010
4. Step 4: Simplify right side
   610,440x = 806,421,960,100
5. Step 5: Solve for x
   x = 806,421,960,100/610,440
6. Step 6: Final answer
   x = 1,321,050.32