Finding the Third Proportional to 2,170,721 and 3,191,048.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,170,721 : 3,191,048.50 = 3,191,048.50 : x
2. Step 2: Convert to fraction form
   2,170,721/3,191,048.50 = 3,191,048.50/x
3. Step 3: Cross multiply
   2,170,721x = 3,191,048.50 × 3,191,048.50
4. Step 4: Simplify right side
   2,170,721x = 10,182,790,529,352.25
5. Step 5: Solve for x
   x = 10,182,790,529,352.25/2,170,721
6. Step 6: Final answer
   x = 4,690,971.58