Finding the Third Proportional to 69,458.50 and 107,620

Step by Step Solution

1. Step 1: Write the proportion equation
   69,458.50 : 107,620 = 107,620 : x
2. Step 2: Convert to fraction form
   69,458.50/107,620 = 107,620/x
3. Step 3: Cross multiply
   69,458.50x = 107,620 × 107,620
4. Step 4: Simplify right side
   69,458.50x = 11,582,064,400
5. Step 5: Solve for x
   x = 11,582,064,400/69,458.50
6. Step 6: Final answer
   x = 166,747.98