Finding the Third Proportional to 99,291 and 146,992.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,291 : 146,992.50 = 146,992.50 : x
2. Step 2: Convert to fraction form
   99,291/146,992.50 = 146,992.50/x
3. Step 3: Cross multiply
   99,291x = 146,992.50 × 146,992.50
4. Step 4: Simplify right side
   99,291x = 21,606,795,056.25
5. Step 5: Solve for x
   x = 21,606,795,056.25/99,291
6. Step 6: Final answer
   x = 217,610.81