Finding the Third Proportional to 88,700 and 137,722

Step by Step Solution

1. Step 1: Write the proportion equation
   88,700 : 137,722 = 137,722 : x
2. Step 2: Convert to fraction form
   88,700/137,722 = 137,722/x
3. Step 3: Cross multiply
   88,700x = 137,722 × 137,722
4. Step 4: Simplify right side
   88,700x = 18,967,349,284
5. Step 5: Solve for x
   x = 18,967,349,284/88,700
6. Step 6: Final answer
   x = 213,837.08