Finding the Third Proportional to 202,582.50 and 294,990

Step by Step Solution

1. Step 1: Write the proportion equation
   202,582.50 : 294,990 = 294,990 : x
2. Step 2: Convert to fraction form
   202,582.50/294,990 = 294,990/x
3. Step 3: Cross multiply
   202,582.50x = 294,990 × 294,990
4. Step 4: Simplify right side
   202,582.50x = 87,019,100,100
5. Step 5: Solve for x
   x = 87,019,100,100/202,582.50
6. Step 6: Final answer
   x = 429,548.95