Finding the Third Proportional to 648,867 and 867,955.50

Step by Step Solution

1. Step 1: Write the proportion equation
   648,867 : 867,955.50 = 867,955.50 : x
2. Step 2: Convert to fraction form
   648,867/867,955.50 = 867,955.50/x
3. Step 3: Cross multiply
   648,867x = 867,955.50 × 867,955.50
4. Step 4: Simplify right side
   648,867x = 753,346,749,980.25
5. Step 5: Solve for x
   x = 753,346,749,980.25/648,867
6. Step 6: Final answer
   x = 1,161,018.74