Finding the Third Proportional to 1,286,607 and 1,892,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,607 : 1,892,488.50 = 1,892,488.50 : x
2. Step 2: Convert to fraction form
   1,286,607/1,892,488.50 = 1,892,488.50/x
3. Step 3: Cross multiply
   1,286,607x = 1,892,488.50 × 1,892,488.50
4. Step 4: Simplify right side
   1,286,607x = 3,581,512,722,632.25
5. Step 5: Solve for x
   x = 3,581,512,722,632.25/1,286,607
6. Step 6: Final answer
   x = 2,783,688.20