Finding the Third Proportional to 528,846 and 805,668.50

Step by Step Solution

1. Step 1: Write the proportion equation
   528,846 : 805,668.50 = 805,668.50 : x
2. Step 2: Convert to fraction form
   528,846/805,668.50 = 805,668.50/x
3. Step 3: Cross multiply
   528,846x = 805,668.50 × 805,668.50
4. Step 4: Simplify right side
   528,846x = 649,101,731,892.25
5. Step 5: Solve for x
   x = 649,101,731,892.25/528,846
6. Step 6: Final answer
   x = 1,227,392.72