Finding the Third Proportional to 505,303 and 757,953.75

Step by Step Solution

1. Step 1: Write the proportion equation
   505,303 : 757,953.75 = 757,953.75 : x
2. Step 2: Convert to fraction form
   505,303/757,953.75 = 757,953.75/x
3. Step 3: Cross multiply
   505,303x = 757,953.75 × 757,953.75
4. Step 4: Simplify right side
   505,303x = 574,493,887,139.06
5. Step 5: Solve for x
   x = 574,493,887,139.06/505,303
6. Step 6: Final answer
   x = 1,136,929.50