Finding the Third Proportional to 270,327 and 389,392.50

Step by Step Solution

1. Step 1: Write the proportion equation
   270,327 : 389,392.50 = 389,392.50 : x
2. Step 2: Convert to fraction form
   270,327/389,392.50 = 389,392.50/x
3. Step 3: Cross multiply
   270,327x = 389,392.50 × 389,392.50
4. Step 4: Simplify right side
   270,327x = 151,626,519,056.25
5. Step 5: Solve for x
   x = 151,626,519,056.25/270,327
6. Step 6: Final answer
   x = 560,900.39