Finding the Third Proportional to 72,648 and 98,658

Step by Step Solution

1. Step 1: Write the proportion equation
   72,648 : 98,658 = 98,658 : x
2. Step 2: Convert to fraction form
   72,648/98,658 = 98,658/x
3. Step 3: Cross multiply
   72,648x = 98,658 × 98,658
4. Step 4: Simplify right side
   72,648x = 9,733,400,964
5. Step 5: Solve for x
   x = 9,733,400,964/72,648
6. Step 6: Final answer
   x = 133,980.30