Finding the Third Proportional to 571,468.50 and 1,221,666

Step by Step Solution

1. Step 1: Write the proportion equation
   571,468.50 : 1,221,666 = 1,221,666 : x
2. Step 2: Convert to fraction form
   571,468.50/1,221,666 = 1,221,666/x
3. Step 3: Cross multiply
   571,468.50x = 1,221,666 × 1,221,666
4. Step 4: Simplify right side
   571,468.50x = 1,492,467,815,556
5. Step 5: Solve for x
   x = 1,492,467,815,556/571,468.50
6. Step 6: Final answer
   x = 2,611,636.19