Finding the Third Proportional to 136,666.50 and 300,237

Step by Step Solution

1. Step 1: Write the proportion equation
   136,666.50 : 300,237 = 300,237 : x
2. Step 2: Convert to fraction form
   136,666.50/300,237 = 300,237/x
3. Step 3: Cross multiply
   136,666.50x = 300,237 × 300,237
4. Step 4: Simplify right side
   136,666.50x = 90,142,256,169
5. Step 5: Solve for x
   x = 90,142,256,169/136,666.50
6. Step 6: Final answer
   x = 659,578.29