Finding the Third Proportional to 99,813 and 146,800.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,813 : 146,800.50 = 146,800.50 : x
2. Step 2: Convert to fraction form
   99,813/146,800.50 = 146,800.50/x
3. Step 3: Cross multiply
   99,813x = 146,800.50 × 146,800.50
4. Step 4: Simplify right side
   99,813x = 21,550,386,800.25
5. Step 5: Solve for x
   x = 21,550,386,800.25/99,813
6. Step 6: Final answer
   x = 215,907.62