Finding the Third Proportional to 111,789 and 164,119.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,789 : 164,119.50 = 164,119.50 : x
2. Step 2: Convert to fraction form
   111,789/164,119.50 = 164,119.50/x
3. Step 3: Cross multiply
   111,789x = 164,119.50 × 164,119.50
4. Step 4: Simplify right side
   111,789x = 26,935,210,280.25
5. Step 5: Solve for x
   x = 26,935,210,280.25/111,789
6. Step 6: Final answer
   x = 240,946.88