Finding the Third Proportional to 303,588 and 452,918.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,588 : 452,918.50 = 452,918.50 : x
2. Step 2: Convert to fraction form
   303,588/452,918.50 = 452,918.50/x
3. Step 3: Cross multiply
   303,588x = 452,918.50 × 452,918.50
4. Step 4: Simplify right side
   303,588x = 205,135,167,642.25
5. Step 5: Solve for x
   x = 205,135,167,642.25/303,588
6. Step 6: Final answer
   x = 675,702.49