Finding the Third Proportional to 498,192 and 699,062.25

Step by Step Solution

1. Step 1: Write the proportion equation
   498,192 : 699,062.25 = 699,062.25 : x
2. Step 2: Convert to fraction form
   498,192/699,062.25 = 699,062.25/x
3. Step 3: Cross multiply
   498,192x = 699,062.25 × 699,062.25
4. Step 4: Simplify right side
   498,192x = 488,688,029,375.06
5. Step 5: Solve for x
   x = 488,688,029,375.06/498,192
6. Step 6: Final answer
   x = 980,923.08