Finding the Third Proportional to 99,705 and 147,992

Step by Step Solution

1. Step 1: Write the proportion equation
   99,705 : 147,992 = 147,992 : x
2. Step 2: Convert to fraction form
   99,705/147,992 = 147,992/x
3. Step 3: Cross multiply
   99,705x = 147,992 × 147,992
4. Step 4: Simplify right side
   99,705x = 21,901,632,064
5. Step 5: Solve for x
   x = 21,901,632,064/99,705
6. Step 6: Final answer
   x = 219,664.33