Finding the Third Proportional to 128,989.50 and 185,793

Step by Step Solution

1. Step 1: Write the proportion equation
   128,989.50 : 185,793 = 185,793 : x
2. Step 2: Convert to fraction form
   128,989.50/185,793 = 185,793/x
3. Step 3: Cross multiply
   128,989.50x = 185,793 × 185,793
4. Step 4: Simplify right side
   128,989.50x = 34,519,038,849
5. Step 5: Solve for x
   x = 34,519,038,849/128,989.50
6. Step 6: Final answer
   x = 267,611.23