Finding the Third Proportional to 615,436.50 and 903,186

Step by Step Solution

1. Step 1: Write the proportion equation
   615,436.50 : 903,186 = 903,186 : x
2. Step 2: Convert to fraction form
   615,436.50/903,186 = 903,186/x
3. Step 3: Cross multiply
   615,436.50x = 903,186 × 903,186
4. Step 4: Simplify right side
   615,436.50x = 815,744,950,596
5. Step 5: Solve for x
   x = 815,744,950,596/615,436.50
6. Step 6: Final answer
   x = 1,325,473.79