Finding the Third Proportional to 131,449.50 and 286,383

Step by Step Solution

1. Step 1: Write the proportion equation
   131,449.50 : 286,383 = 286,383 : x
2. Step 2: Convert to fraction form
   131,449.50/286,383 = 286,383/x
3. Step 3: Cross multiply
   131,449.50x = 286,383 × 286,383
4. Step 4: Simplify right side
   131,449.50x = 82,015,222,689
5. Step 5: Solve for x
   x = 82,015,222,689/131,449.50
6. Step 6: Final answer
   x = 623,929.51