Finding the Third Proportional to 69,216 and 108,433.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,216 : 108,433.50 = 108,433.50 : x
2. Step 2: Convert to fraction form
   69,216/108,433.50 = 108,433.50/x
3. Step 3: Cross multiply
   69,216x = 108,433.50 × 108,433.50
4. Step 4: Simplify right side
   69,216x = 11,757,823,922.25
5. Step 5: Solve for x
   x = 11,757,823,922.25/69,216
6. Step 6: Final answer
   x = 169,871.47