Finding the Third Proportional to 671,417.25 and 1,308,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   671,417.25 : 1,308,571.50 = 1,308,571.50 : x
2. Step 2: Convert to fraction form
   671,417.25/1,308,571.50 = 1,308,571.50/x
3. Step 3: Cross multiply
   671,417.25x = 1,308,571.50 × 1,308,571.50
4. Step 4: Simplify right side
   671,417.25x = 1,712,359,370,612.25
5. Step 5: Solve for x
   x = 1,712,359,370,612.25/671,417.25
6. Step 6: Final answer
   x = 2,550,365.47