Finding the Third Proportional to 466,623 and 685,021.50

Step by Step Solution

1. Step 1: Write the proportion equation
   466,623 : 685,021.50 = 685,021.50 : x
2. Step 2: Convert to fraction form
   466,623/685,021.50 = 685,021.50/x
3. Step 3: Cross multiply
   466,623x = 685,021.50 × 685,021.50
4. Step 4: Simplify right side
   466,623x = 469,254,455,462.25
5. Step 5: Solve for x
   x = 469,254,455,462.25/466,623
6. Step 6: Final answer
   x = 1,005,639.36