Finding the Third Proportional to 111,079.50 and 236,940

Step by Step Solution

1. Step 1: Write the proportion equation
   111,079.50 : 236,940 = 236,940 : x
2. Step 2: Convert to fraction form
   111,079.50/236,940 = 236,940/x
3. Step 3: Cross multiply
   111,079.50x = 236,940 × 236,940
4. Step 4: Simplify right side
   111,079.50x = 56,140,563,600
5. Step 5: Solve for x
   x = 56,140,563,600/111,079.50
6. Step 6: Final answer
   x = 505,408.86