Finding the Third Proportional to 69,143 and 103,690

Step by Step Solution

1. Step 1: Write the proportion equation
   69,143 : 103,690 = 103,690 : x
2. Step 2: Convert to fraction form
   69,143/103,690 = 103,690/x
3. Step 3: Cross multiply
   69,143x = 103,690 × 103,690
4. Step 4: Simplify right side
   69,143x = 10,751,616,100
5. Step 5: Solve for x
   x = 10,751,616,100/69,143
6. Step 6: Final answer
   x = 155,498.26