Finding the Third Proportional to 687,068.50 and 903,492

Step by Step Solution

1. Step 1: Write the proportion equation
   687,068.50 : 903,492 = 903,492 : x
2. Step 2: Convert to fraction form
   687,068.50/903,492 = 903,492/x
3. Step 3: Cross multiply
   687,068.50x = 903,492 × 903,492
4. Step 4: Simplify right side
   687,068.50x = 816,297,794,064
5. Step 5: Solve for x
   x = 816,297,794,064/687,068.50
6. Step 6: Final answer
   x = 1,188,087.93