Finding the Third Proportional to 70,624 and 99,008

Step by Step Solution

1. Step 1: Write the proportion equation
   70,624 : 99,008 = 99,008 : x
2. Step 2: Convert to fraction form
   70,624/99,008 = 99,008/x
3. Step 3: Cross multiply
   70,624x = 99,008 × 99,008
4. Step 4: Simplify right side
   70,624x = 9,802,584,064
5. Step 5: Solve for x
   x = 9,802,584,064/70,624
6. Step 6: Final answer
   x = 138,799.62