Finding the Third Proportional to 263,268 and 513,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   263,268 : 513,412.50 = 513,412.50 : x
2. Step 2: Convert to fraction form
   263,268/513,412.50 = 513,412.50/x
3. Step 3: Cross multiply
   263,268x = 513,412.50 × 513,412.50
4. Step 4: Simplify right side
   263,268x = 263,592,395,156.25
5. Step 5: Solve for x
   x = 263,592,395,156.25/263,268
6. Step 6: Final answer
   x = 1,001,232.19