Finding the Third Proportional to 99,784 and 146,718

Step by Step Solution

1. Step 1: Write the proportion equation
   99,784 : 146,718 = 146,718 : x
2. Step 2: Convert to fraction form
   99,784/146,718 = 146,718/x
3. Step 3: Cross multiply
   99,784x = 146,718 × 146,718
4. Step 4: Simplify right side
   99,784x = 21,526,171,524
5. Step 5: Solve for x
   x = 21,526,171,524/99,784
6. Step 6: Final answer
   x = 215,727.69