Finding the Third Proportional to 302,617.50 and 651,918

Step by Step Solution

1. Step 1: Write the proportion equation
   302,617.50 : 651,918 = 651,918 : x
2. Step 2: Convert to fraction form
   302,617.50/651,918 = 651,918/x
3. Step 3: Cross multiply
   302,617.50x = 651,918 × 651,918
4. Step 4: Simplify right side
   302,617.50x = 424,997,078,724
5. Step 5: Solve for x
   x = 424,997,078,724/302,617.50
6. Step 6: Final answer
   x = 1,404,403.51