Finding the Third Proportional to 89,732 and 130,420

Step by Step Solution

1. Step 1: Write the proportion equation
   89,732 : 130,420 = 130,420 : x
2. Step 2: Convert to fraction form
   89,732/130,420 = 130,420/x
3. Step 3: Cross multiply
   89,732x = 130,420 × 130,420
4. Step 4: Simplify right side
   89,732x = 17,009,376,400
5. Step 5: Solve for x
   x = 17,009,376,400/89,732
6. Step 6: Final answer
   x = 189,557.53