Finding the Third Proportional to 458,806.50 and 723,031.50

Step by Step Solution

1. Step 1: Write the proportion equation
   458,806.50 : 723,031.50 = 723,031.50 : x
2. Step 2: Convert to fraction form
   458,806.50/723,031.50 = 723,031.50/x
3. Step 3: Cross multiply
   458,806.50x = 723,031.50 × 723,031.50
4. Step 4: Simplify right side
   458,806.50x = 522,774,549,992.25
5. Step 5: Solve for x
   x = 522,774,549,992.25/458,806.50
6. Step 6: Final answer
   x = 1,139,422.72