Finding the Third Proportional to 99,290 and 146,991

Step by Step Solution

1. Step 1: Write the proportion equation
   99,290 : 146,991 = 146,991 : x
2. Step 2: Convert to fraction form
   99,290/146,991 = 146,991/x
3. Step 3: Cross multiply
   99,290x = 146,991 × 146,991
4. Step 4: Simplify right side
   99,290x = 21,606,354,081
5. Step 5: Solve for x
   x = 21,606,354,081/99,290
6. Step 6: Final answer
   x = 217,608.56