Finding the Third Proportional to 840,235 and 1,291,500

Step by Step Solution

1. Step 1: Write the proportion equation
   840,235 : 1,291,500 = 1,291,500 : x
2. Step 2: Convert to fraction form
   840,235/1,291,500 = 1,291,500/x
3. Step 3: Cross multiply
   840,235x = 1,291,500 × 1,291,500
4. Step 4: Simplify right side
   840,235x = 1,667,972,250,000
5. Step 5: Solve for x
   x = 1,667,972,250,000/840,235
6. Step 6: Final answer
   x = 1,985,125.89