Finding the Third Proportional to 138,757.50 and 300,843

Step by Step Solution

1. Step 1: Write the proportion equation
   138,757.50 : 300,843 = 300,843 : x
2. Step 2: Convert to fraction form
   138,757.50/300,843 = 300,843/x
3. Step 3: Cross multiply
   138,757.50x = 300,843 × 300,843
4. Step 4: Simplify right side
   138,757.50x = 90,506,510,649
5. Step 5: Solve for x
   x = 90,506,510,649/138,757.50
6. Step 6: Final answer
   x = 652,263.92