Finding the Third Proportional to 91,157 and 139,927

Step by Step Solution

1. Step 1: Write the proportion equation
   91,157 : 139,927 = 139,927 : x
2. Step 2: Convert to fraction form
   91,157/139,927 = 139,927/x
3. Step 3: Cross multiply
   91,157x = 139,927 × 139,927
4. Step 4: Simplify right side
   91,157x = 19,579,565,329
5. Step 5: Solve for x
   x = 19,579,565,329/91,157
6. Step 6: Final answer
   x = 214,789.49