Finding the Third Proportional to 132,222.38 and 285,484.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,222.38 : 285,484.50 = 285,484.50 : x
2. Step 2: Convert to fraction form
   132,222.38/285,484.50 = 285,484.50/x
3. Step 3: Cross multiply
   132,222.38x = 285,484.50 × 285,484.50
4. Step 4: Simplify right side
   132,222.38x = 81,501,399,740.25
5. Step 5: Solve for x
   x = 81,501,399,740.25/132,222.38
6. Step 6: Final answer
   x = 616,396.43