Finding the Third Proportional to 290,874 and 606,655.50

Step by Step Solution

1. Step 1: Write the proportion equation
   290,874 : 606,655.50 = 606,655.50 : x
2. Step 2: Convert to fraction form
   290,874/606,655.50 = 606,655.50/x
3. Step 3: Cross multiply
   290,874x = 606,655.50 × 606,655.50
4. Step 4: Simplify right side
   290,874x = 368,030,895,680.25
5. Step 5: Solve for x
   x = 368,030,895,680.25/290,874
6. Step 6: Final answer
   x = 1,265,258.83