Finding the Third Proportional to 109,372.50 and 238,509

Step by Step Solution

1. Step 1: Write the proportion equation
   109,372.50 : 238,509 = 238,509 : x
2. Step 2: Convert to fraction form
   109,372.50/238,509 = 238,509/x
3. Step 3: Cross multiply
   109,372.50x = 238,509 × 238,509
4. Step 4: Simplify right side
   109,372.50x = 56,886,543,081
5. Step 5: Solve for x
   x = 56,886,543,081/109,372.50
6. Step 6: Final answer
   x = 520,117.43