Finding the Third Proportional to 268,559.63 and 388,384.69

Step by Step Solution

1. Step 1: Write the proportion equation
   268,559.63 : 388,384.69 = 388,384.69 : x
2. Step 2: Convert to fraction form
   268,559.63/388,384.69 = 388,384.69/x
3. Step 3: Cross multiply
   268,559.63x = 388,384.69 × 388,384.69
4. Step 4: Simplify right side
   268,559.63x = 150,842,665,484.47
5. Step 5: Solve for x
   x = 150,842,665,484.47/268,559.63
6. Step 6: Final answer
   x = 561,672.91