Finding the Third Proportional to 59,392 and 130,688

Step by Step Solution

1. Step 1: Write the proportion equation
   59,392 : 130,688 = 130,688 : x
2. Step 2: Convert to fraction form
   59,392/130,688 = 130,688/x
3. Step 3: Cross multiply
   59,392x = 130,688 × 130,688
4. Step 4: Simplify right side
   59,392x = 17,079,353,344
5. Step 5: Solve for x
   x = 17,079,353,344/59,392
6. Step 6: Final answer
   x = 287,569.93