Finding the Third Proportional to 142,900.50 and 305,484

Step by Step Solution

1. Step 1: Write the proportion equation
   142,900.50 : 305,484 = 305,484 : x
2. Step 2: Convert to fraction form
   142,900.50/305,484 = 305,484/x
3. Step 3: Cross multiply
   142,900.50x = 305,484 × 305,484
4. Step 4: Simplify right side
   142,900.50x = 93,320,474,256
5. Step 5: Solve for x
   x = 93,320,474,256/142,900.50
6. Step 6: Final answer
   x = 653,045.12