Finding the Third Proportional to 491,214 and 738,643.50

Step by Step Solution

1. Step 1: Write the proportion equation
   491,214 : 738,643.50 = 738,643.50 : x
2. Step 2: Convert to fraction form
   491,214/738,643.50 = 738,643.50/x
3. Step 3: Cross multiply
   491,214x = 738,643.50 × 738,643.50
4. Step 4: Simplify right side
   491,214x = 545,594,220,092.25
5. Step 5: Solve for x
   x = 545,594,220,092.25/491,214
6. Step 6: Final answer
   x = 1,110,705.76