Finding the Third Proportional to 108,429 and 169,200

Step by Step Solution

1. Step 1: Write the proportion equation
   108,429 : 169,200 = 169,200 : x
2. Step 2: Convert to fraction form
   108,429/169,200 = 169,200/x
3. Step 3: Cross multiply
   108,429x = 169,200 × 169,200
4. Step 4: Simplify right side
   108,429x = 28,628,640,000
5. Step 5: Solve for x
   x = 28,628,640,000/108,429
6. Step 6: Final answer
   x = 264,031.21