Finding the Third Proportional to 2,127,816 and 3,191,688

Step by Step Solution

1. Step 1: Write the proportion equation
   2,127,816 : 3,191,688 = 3,191,688 : x
2. Step 2: Convert to fraction form
   2,127,816/3,191,688 = 3,191,688/x
3. Step 3: Cross multiply
   2,127,816x = 3,191,688 × 3,191,688
4. Step 4: Simplify right side
   2,127,816x = 10,186,872,289,344
5. Step 5: Solve for x
   x = 10,186,872,289,344/2,127,816
6. Step 6: Final answer
   x = 4,787,478.00