Finding the Third Proportional to 868,738.50 and 1,914,300

Step by Step Solution

1. Step 1: Write the proportion equation
   868,738.50 : 1,914,300 = 1,914,300 : x
2. Step 2: Convert to fraction form
   868,738.50/1,914,300 = 1,914,300/x
3. Step 3: Cross multiply
   868,738.50x = 1,914,300 × 1,914,300
4. Step 4: Simplify right side
   868,738.50x = 3,664,544,490,000
5. Step 5: Solve for x
   x = 3,664,544,490,000/868,738.50
6. Step 6: Final answer
   x = 4,218,236.55