Finding the Third Proportional to 99,816 and 146,802.75

Step by Step Solution

1. Step 1: Write the proportion equation
   99,816 : 146,802.75 = 146,802.75 : x
2. Step 2: Convert to fraction form
   99,816/146,802.75 = 146,802.75/x
3. Step 3: Cross multiply
   99,816x = 146,802.75 × 146,802.75
4. Step 4: Simplify right side
   99,816x = 21,551,047,407.56
5. Step 5: Solve for x
   x = 21,551,047,407.56/99,816
6. Step 6: Final answer
   x = 215,907.74