Finding the Third Proportional to 133,393.50 and 203,478

Step by Step Solution

1. Step 1: Write the proportion equation
   133,393.50 : 203,478 = 203,478 : x
2. Step 2: Convert to fraction form
   133,393.50/203,478 = 203,478/x
3. Step 3: Cross multiply
   133,393.50x = 203,478 × 203,478
4. Step 4: Simplify right side
   133,393.50x = 41,403,296,484
5. Step 5: Solve for x
   x = 41,403,296,484/133,393.50
6. Step 6: Final answer
   x = 310,384.66