Finding the Third Proportional to 2,187,811 and 4,726,160

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187,811 : 4,726,160 = 4,726,160 : x
2. Step 2: Convert to fraction form
   2,187,811/4,726,160 = 4,726,160/x
3. Step 3: Cross multiply
   2,187,811x = 4,726,160 × 4,726,160
4. Step 4: Simplify right side
   2,187,811x = 22,336,588,345,600
5. Step 5: Solve for x
   x = 22,336,588,345,600/2,187,811
6. Step 6: Final answer
   x = 10,209,560.31