Finding the Third Proportional to 1,478,399.25 and 2,161,471.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,478,399.25 : 2,161,471.50 = 2,161,471.50 : x
2. Step 2: Convert to fraction form
   1,478,399.25/2,161,471.50 = 2,161,471.50/x
3. Step 3: Cross multiply
   1,478,399.25x = 2,161,471.50 × 2,161,471.50
4. Step 4: Simplify right side
   1,478,399.25x = 4,671,959,045,312.25
5. Step 5: Solve for x
   x = 4,671,959,045,312.25/1,478,399.25
6. Step 6: Final answer
   x = 3,160,147.06