Finding the Third Proportional to 664,326 and 1,031,485.50

Step by Step Solution

1. Step 1: Write the proportion equation
   664,326 : 1,031,485.50 = 1,031,485.50 : x
2. Step 2: Convert to fraction form
   664,326/1,031,485.50 = 1,031,485.50/x
3. Step 3: Cross multiply
   664,326x = 1,031,485.50 × 1,031,485.50
4. Step 4: Simplify right side
   664,326x = 1,063,962,336,710.25
5. Step 5: Solve for x
   x = 1,063,962,336,710.25/664,326
6. Step 6: Final answer
   x = 1,601,566.61