Finding the Third Proportional to 687,894 and 934,142.50

Step by Step Solution

1. Step 1: Write the proportion equation
   687,894 : 934,142.50 = 934,142.50 : x
2. Step 2: Convert to fraction form
   687,894/934,142.50 = 934,142.50/x
3. Step 3: Cross multiply
   687,894x = 934,142.50 × 934,142.50
4. Step 4: Simplify right side
   687,894x = 872,622,210,306.25
5. Step 5: Solve for x
   x = 872,622,210,306.25/687,894
6. Step 6: Final answer
   x = 1,268,541.68