Finding the Third Proportional to 189,066.50 and 283,600

Step by Step Solution

1. Step 1: Write the proportion equation
   189,066.50 : 283,600 = 283,600 : x
2. Step 2: Convert to fraction form
   189,066.50/283,600 = 283,600/x
3. Step 3: Cross multiply
   189,066.50x = 283,600 × 283,600
4. Step 4: Simplify right side
   189,066.50x = 80,428,960,000
5. Step 5: Solve for x
   x = 80,428,960,000/189,066.50
6. Step 6: Final answer
   x = 425,400.38