Finding the Third Proportional to 406,287 and 875,011.50

Step by Step Solution

1. Step 1: Write the proportion equation
   406,287 : 875,011.50 = 875,011.50 : x
2. Step 2: Convert to fraction form
   406,287/875,011.50 = 875,011.50/x
3. Step 3: Cross multiply
   406,287x = 875,011.50 × 875,011.50
4. Step 4: Simplify right side
   406,287x = 765,645,125,132.25
5. Step 5: Solve for x
   x = 765,645,125,132.25/406,287
6. Step 6: Final answer
   x = 1,884,493.29