Finding the Third Proportional to 699,808.50 and 1,049,530.50

Step by Step Solution

1. Step 1: Write the proportion equation
   699,808.50 : 1,049,530.50 = 1,049,530.50 : x
2. Step 2: Convert to fraction form
   699,808.50/1,049,530.50 = 1,049,530.50/x
3. Step 3: Cross multiply
   699,808.50x = 1,049,530.50 × 1,049,530.50
4. Step 4: Simplify right side
   699,808.50x = 1,101,514,270,430.25
5. Step 5: Solve for x
   x = 1,101,514,270,430.25/699,808.50
6. Step 6: Final answer
   x = 1,574,022.42