Finding the Third Proportional to 72,772 and 108,710

Step by Step Solution

1. Step 1: Write the proportion equation
   72,772 : 108,710 = 108,710 : x
2. Step 2: Convert to fraction form
   72,772/108,710 = 108,710/x
3. Step 3: Cross multiply
   72,772x = 108,710 × 108,710
4. Step 4: Simplify right side
   72,772x = 11,817,864,100
5. Step 5: Solve for x
   x = 11,817,864,100/72,772
6. Step 6: Final answer
   x = 162,395.76