Finding the Third Proportional to 146,499.50 and 310,985

Step by Step Solution

1. Step 1: Write the proportion equation
   146,499.50 : 310,985 = 310,985 : x
2. Step 2: Convert to fraction form
   146,499.50/310,985 = 310,985/x
3. Step 3: Cross multiply
   146,499.50x = 310,985 × 310,985
4. Step 4: Simplify right side
   146,499.50x = 96,711,670,225
5. Step 5: Solve for x
   x = 96,711,670,225/146,499.50
6. Step 6: Final answer
   x = 660,150.17