Finding the Third Proportional to 62,978.50 and 133,066

Step by Step Solution

1. Step 1: Write the proportion equation
   62,978.50 : 133,066 = 133,066 : x
2. Step 2: Convert to fraction form
   62,978.50/133,066 = 133,066/x
3. Step 3: Cross multiply
   62,978.50x = 133,066 × 133,066
4. Step 4: Simplify right side
   62,978.50x = 17,706,560,356
5. Step 5: Solve for x
   x = 17,706,560,356/62,978.50
6. Step 6: Final answer
   x = 281,152.46