Finding the Third Proportional to 406,958 and 598,671.50

Step by Step Solution

1. Step 1: Write the proportion equation
   406,958 : 598,671.50 = 598,671.50 : x
2. Step 2: Convert to fraction form
   406,958/598,671.50 = 598,671.50/x
3. Step 3: Cross multiply
   406,958x = 598,671.50 × 598,671.50
4. Step 4: Simplify right side
   406,958x = 358,407,564,912.25
5. Step 5: Solve for x
   x = 358,407,564,912.25/406,958
6. Step 6: Final answer
   x = 880,699.15