Finding the Third Proportional to 69,320 and 107,290

Step by Step Solution

1. Step 1: Write the proportion equation
   69,320 : 107,290 = 107,290 : x
2. Step 2: Convert to fraction form
   69,320/107,290 = 107,290/x
3. Step 3: Cross multiply
   69,320x = 107,290 × 107,290
4. Step 4: Simplify right side
   69,320x = 11,511,144,100
5. Step 5: Solve for x
   x = 11,511,144,100/69,320
6. Step 6: Final answer
   x = 166,058.05