Finding the Third Proportional to 70,648 and 99,028

Step by Step Solution

1. Step 1: Write the proportion equation
   70,648 : 99,028 = 99,028 : x
2. Step 2: Convert to fraction form
   70,648/99,028 = 99,028/x
3. Step 3: Cross multiply
   70,648x = 99,028 × 99,028
4. Step 4: Simplify right side
   70,648x = 9,806,544,784
5. Step 5: Solve for x
   x = 9,806,544,784/70,648
6. Step 6: Final answer
   x = 138,808.53