Finding the Third Proportional to 69,510.38 and 111,920.63

Step by Step Solution

1. Step 1: Write the proportion equation
   69,510.38 : 111,920.63 = 111,920.63 : x
2. Step 2: Convert to fraction form
   69,510.38/111,920.63 = 111,920.63/x
3. Step 3: Cross multiply
   69,510.38x = 111,920.63 × 111,920.63
4. Step 4: Simplify right side
   69,510.38x = 12,526,226,300.39
5. Step 5: Solve for x
   x = 12,526,226,300.39/69,510.38
6. Step 6: Final answer
   x = 180,206.57