Finding the Third Proportional to 662,809.50 and 1,036,867.50

Step by Step Solution

1. Step 1: Write the proportion equation
   662,809.50 : 1,036,867.50 = 1,036,867.50 : x
2. Step 2: Convert to fraction form
   662,809.50/1,036,867.50 = 1,036,867.50/x
3. Step 3: Cross multiply
   662,809.50x = 1,036,867.50 × 1,036,867.50
4. Step 4: Simplify right side
   662,809.50x = 1,075,094,212,556.25
5. Step 5: Solve for x
   x = 1,075,094,212,556.25/662,809.50
6. Step 6: Final answer
   x = 1,622,025.96