Finding the Third Proportional to 45,722 and 99,988

Step by Step Solution

1. Step 1: Write the proportion equation
   45,722 : 99,988 = 99,988 : x
2. Step 2: Convert to fraction form
   45,722/99,988 = 99,988/x
3. Step 3: Cross multiply
   45,722x = 99,988 × 99,988
4. Step 4: Simplify right side
   45,722x = 9,997,600,144
5. Step 5: Solve for x
   x = 9,997,600,144/45,722
6. Step 6: Final answer
   x = 218,660.60