Finding the Third Proportional to 72,710 and 98,210

Step by Step Solution

1. Step 1: Write the proportion equation
   72,710 : 98,210 = 98,210 : x
2. Step 2: Convert to fraction form
   72,710/98,210 = 98,210/x
3. Step 3: Cross multiply
   72,710x = 98,210 × 98,210
4. Step 4: Simplify right side
   72,710x = 9,645,204,100
5. Step 5: Solve for x
   x = 9,645,204,100/72,710
6. Step 6: Final answer
   x = 132,653.06