Finding the Third Proportional to 111,064.50 and 238,545

Step by Step Solution

1. Step 1: Write the proportion equation
   111,064.50 : 238,545 = 238,545 : x
2. Step 2: Convert to fraction form
   111,064.50/238,545 = 238,545/x
3. Step 3: Cross multiply
   111,064.50x = 238,545 × 238,545
4. Step 4: Simplify right side
   111,064.50x = 56,903,717,025
5. Step 5: Solve for x
   x = 56,903,717,025/111,064.50
6. Step 6: Final answer
   x = 512,348.38