Finding the Third Proportional to 85,558 and 137,843

Step by Step Solution

1. Step 1: Write the proportion equation
   85,558 : 137,843 = 137,843 : x
2. Step 2: Convert to fraction form
   85,558/137,843 = 137,843/x
3. Step 3: Cross multiply
   85,558x = 137,843 × 137,843
4. Step 4: Simplify right side
   85,558x = 19,000,692,649
5. Step 5: Solve for x
   x = 19,000,692,649/85,558
6. Step 6: Final answer
   x = 222,079.67