Finding the Third Proportional to 153,034.50 and 215,124

Step by Step Solution

1. Step 1: Write the proportion equation
   153,034.50 : 215,124 = 215,124 : x
2. Step 2: Convert to fraction form
   153,034.50/215,124 = 215,124/x
3. Step 3: Cross multiply
   153,034.50x = 215,124 × 215,124
4. Step 4: Simplify right side
   153,034.50x = 46,278,335,376
5. Step 5: Solve for x
   x = 46,278,335,376/153,034.50
6. Step 6: Final answer
   x = 302,404.59