Finding the Third Proportional to 1,399,969.50 and 2,171,810.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,969.50 : 2,171,810.25 = 2,171,810.25 : x
2. Step 2: Convert to fraction form
   1,399,969.50/2,171,810.25 = 2,171,810.25/x
3. Step 3: Cross multiply
   1,399,969.50x = 2,171,810.25 × 2,171,810.25
4. Step 4: Simplify right side
   1,399,969.50x = 4,716,759,762,005.06
5. Step 5: Solve for x
   x = 4,716,759,762,005.06/1,399,969.50
6. Step 6: Final answer
   x = 3,369,187.52