Finding the Third Proportional to 138,559.50 and 296,073

Step by Step Solution

1. Step 1: Write the proportion equation
   138,559.50 : 296,073 = 296,073 : x
2. Step 2: Convert to fraction form
   138,559.50/296,073 = 296,073/x
3. Step 3: Cross multiply
   138,559.50x = 296,073 × 296,073
4. Step 4: Simplify right side
   138,559.50x = 87,659,221,329
5. Step 5: Solve for x
   x = 87,659,221,329/138,559.50
6. Step 6: Final answer
   x = 632,646.78