Finding the Third Proportional to 549,117 and 805,855.50

Step by Step Solution

1. Step 1: Write the proportion equation
   549,117 : 805,855.50 = 805,855.50 : x
2. Step 2: Convert to fraction form
   549,117/805,855.50 = 805,855.50/x
3. Step 3: Cross multiply
   549,117x = 805,855.50 × 805,855.50
4. Step 4: Simplify right side
   549,117x = 649,403,086,880.25
5. Step 5: Solve for x
   x = 649,403,086,880.25/549,117
6. Step 6: Final answer
   x = 1,182,631.55