Finding the Third Proportional to 153,024 and 215,109.75

Step by Step Solution

1. Step 1: Write the proportion equation
   153,024 : 215,109.75 = 215,109.75 : x
2. Step 2: Convert to fraction form
   153,024/215,109.75 = 215,109.75/x
3. Step 3: Cross multiply
   153,024x = 215,109.75 × 215,109.75
4. Step 4: Simplify right side
   153,024x = 46,272,204,545.06
5. Step 5: Solve for x
   x = 46,272,204,545.06/153,024
6. Step 6: Final answer
   x = 302,385.28