Finding the Third Proportional to 278,066.50 and 607,103

Step by Step Solution

1. Step 1: Write the proportion equation
   278,066.50 : 607,103 = 607,103 : x
2. Step 2: Convert to fraction form
   278,066.50/607,103 = 607,103/x
3. Step 3: Cross multiply
   278,066.50x = 607,103 × 607,103
4. Step 4: Simplify right side
   278,066.50x = 368,574,052,609
5. Step 5: Solve for x
   x = 368,574,052,609/278,066.50
6. Step 6: Final answer
   x = 1,325,488.88