Finding the Third Proportional to 278,046 and 575,788.50

Step by Step Solution

1. Step 1: Write the proportion equation
   278,046 : 575,788.50 = 575,788.50 : x
2. Step 2: Convert to fraction form
   278,046/575,788.50 = 575,788.50/x
3. Step 3: Cross multiply
   278,046x = 575,788.50 × 575,788.50
4. Step 4: Simplify right side
   278,046x = 331,532,396,732.25
5. Step 5: Solve for x
   x = 331,532,396,732.25/278,046
6. Step 6: Final answer
   x = 1,192,365.28