Finding the Third Proportional to 242,307 and 563,107.50

Step by Step Solution

1. Step 1: Write the proportion equation
   242,307 : 563,107.50 = 563,107.50 : x
2. Step 2: Convert to fraction form
   242,307/563,107.50 = 563,107.50/x
3. Step 3: Cross multiply
   242,307x = 563,107.50 × 563,107.50
4. Step 4: Simplify right side
   242,307x = 317,090,056,556.25
5. Step 5: Solve for x
   x = 317,090,056,556.25/242,307
6. Step 6: Final answer
   x = 1,308,629.37