Finding the Third Proportional to 303,534 and 660,615.75

Step by Step Solution

1. Step 1: Write the proportion equation
   303,534 : 660,615.75 = 660,615.75 : x
2. Step 2: Convert to fraction form
   303,534/660,615.75 = 660,615.75/x
3. Step 3: Cross multiply
   303,534x = 660,615.75 × 660,615.75
4. Step 4: Simplify right side
   303,534x = 436,413,169,148.06
5. Step 5: Solve for x
   x = 436,413,169,148.06/303,534
6. Step 6: Final answer
   x = 1,437,773.59