Finding the Third Proportional to 302,866.50 and 637,110

Step by Step Solution

1. Step 1: Write the proportion equation
   302,866.50 : 637,110 = 637,110 : x
2. Step 2: Convert to fraction form
   302,866.50/637,110 = 637,110/x
3. Step 3: Cross multiply
   302,866.50x = 637,110 × 637,110
4. Step 4: Simplify right side
   302,866.50x = 405,909,152,100
5. Step 5: Solve for x
   x = 405,909,152,100/302,866.50
6. Step 6: Final answer
   x = 1,340,224.66