Finding the Third Proportional to 99,249 and 215,992.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,249 : 215,992.50 = 215,992.50 : x
2. Step 2: Convert to fraction form
   99,249/215,992.50 = 215,992.50/x
3. Step 3: Cross multiply
   99,249x = 215,992.50 × 215,992.50
4. Step 4: Simplify right side
   99,249x = 46,652,760,056.25
5. Step 5: Solve for x
   x = 46,652,760,056.25/99,249
6. Step 6: Final answer
   x = 470,057.73