Finding the Third Proportional to 112,117.50 and 238,770

Step by Step Solution

1. Step 1: Write the proportion equation
   112,117.50 : 238,770 = 238,770 : x
2. Step 2: Convert to fraction form
   112,117.50/238,770 = 238,770/x
3. Step 3: Cross multiply
   112,117.50x = 238,770 × 238,770
4. Step 4: Simplify right side
   112,117.50x = 57,011,112,900
5. Step 5: Solve for x
   x = 57,011,112,900/112,117.50
6. Step 6: Final answer
   x = 508,494.33