Finding the Third Proportional to 648,504 and 1,035,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   648,504 : 1,035,991.50 = 1,035,991.50 : x
2. Step 2: Convert to fraction form
   648,504/1,035,991.50 = 1,035,991.50/x
3. Step 3: Cross multiply
   648,504x = 1,035,991.50 × 1,035,991.50
4. Step 4: Simplify right side
   648,504x = 1,073,278,388,072.25
5. Step 5: Solve for x
   x = 1,073,278,388,072.25/648,504
6. Step 6: Final answer
   x = 1,655,006.58