Finding the Third Proportional to 111,933 and 155,139

Step by Step Solution

1. Step 1: Write the proportion equation
   111,933 : 155,139 = 155,139 : x
2. Step 2: Convert to fraction form
   111,933/155,139 = 155,139/x
3. Step 3: Cross multiply
   111,933x = 155,139 × 155,139
4. Step 4: Simplify right side
   111,933x = 24,068,109,321
5. Step 5: Solve for x
   x = 24,068,109,321/111,933
6. Step 6: Final answer
   x = 215,022.46