Finding the Third Proportional to 200,529.50 and 299,780

Step by Step Solution

1. Step 1: Write the proportion equation
   200,529.50 : 299,780 = 299,780 : x
2. Step 2: Convert to fraction form
   200,529.50/299,780 = 299,780/x
3. Step 3: Cross multiply
   200,529.50x = 299,780 × 299,780
4. Step 4: Simplify right side
   200,529.50x = 89,868,048,400
5. Step 5: Solve for x
   x = 89,868,048,400/200,529.50
6. Step 6: Final answer
   x = 448,153.75