Finding the Third Proportional to 615,434 and 903,182.25

Step by Step Solution

1. Step 1: Write the proportion equation
   615,434 : 903,182.25 = 903,182.25 : x
2. Step 2: Convert to fraction form
   615,434/903,182.25 = 903,182.25/x
3. Step 3: Cross multiply
   615,434x = 903,182.25 × 903,182.25
4. Step 4: Simplify right side
   615,434x = 815,738,176,715.06
5. Step 5: Solve for x
   x = 815,738,176,715.06/615,434
6. Step 6: Final answer
   x = 1,325,468.17