Finding the Third Proportional to 90,648 and 140,008

Step by Step Solution

1. Step 1: Write the proportion equation
   90,648 : 140,008 = 140,008 : x
2. Step 2: Convert to fraction form
   90,648/140,008 = 140,008/x
3. Step 3: Cross multiply
   90,648x = 140,008 × 140,008
4. Step 4: Simplify right side
   90,648x = 19,602,240,064
5. Step 5: Solve for x
   x = 19,602,240,064/90,648
6. Step 6: Final answer
   x = 216,245.70