Finding the Third Proportional to 538,734 and 1,178,434

Step by Step Solution

1. Step 1: Write the proportion equation
   538,734 : 1,178,434 = 1,178,434 : x
2. Step 2: Convert to fraction form
   538,734/1,178,434 = 1,178,434/x
3. Step 3: Cross multiply
   538,734x = 1,178,434 × 1,178,434
4. Step 4: Simplify right side
   538,734x = 1,388,706,692,356
5. Step 5: Solve for x
   x = 1,388,706,692,356/538,734
6. Step 6: Final answer
   x = 2,577,722.39