Finding the Third Proportional to 45,200 and 69,987

Step by Step Solution

1. Step 1: Write the proportion equation
   45,200 : 69,987 = 69,987 : x
2. Step 2: Convert to fraction form
   45,200/69,987 = 69,987/x
3. Step 3: Cross multiply
   45,200x = 69,987 × 69,987
4. Step 4: Simplify right side
   45,200x = 4,898,180,169
5. Step 5: Solve for x
   x = 4,898,180,169/45,200
6. Step 6: Final answer
   x = 108,366.82