Finding the Third Proportional to 152,956.50 and 215,013

Step by Step Solution

1. Step 1: Write the proportion equation
   152,956.50 : 215,013 = 215,013 : x
2. Step 2: Convert to fraction form
   152,956.50/215,013 = 215,013/x
3. Step 3: Cross multiply
   152,956.50x = 215,013 × 215,013
4. Step 4: Simplify right side
   152,956.50x = 46,230,590,169
5. Step 5: Solve for x
   x = 46,230,590,169/152,956.50
6. Step 6: Final answer
   x = 302,246.65