Finding the Third Proportional to 138,964.50 and 303,354

Step by Step Solution

1. Step 1: Write the proportion equation
   138,964.50 : 303,354 = 303,354 : x
2. Step 2: Convert to fraction form
   138,964.50/303,354 = 303,354/x
3. Step 3: Cross multiply
   138,964.50x = 303,354 × 303,354
4. Step 4: Simplify right side
   138,964.50x = 92,023,649,316
5. Step 5: Solve for x
   x = 92,023,649,316/138,964.50
6. Step 6: Final answer
   x = 662,209.77