Finding the Third Proportional to 72,760 and 109,410

Step by Step Solution

1. Step 1: Write the proportion equation
   72,760 : 109,410 = 109,410 : x
2. Step 2: Convert to fraction form
   72,760/109,410 = 109,410/x
3. Step 3: Cross multiply
   72,760x = 109,410 × 109,410
4. Step 4: Simplify right side
   72,760x = 11,970,548,100
5. Step 5: Solve for x
   x = 11,970,548,100/72,760
6. Step 6: Final answer
   x = 164,521.00