Finding the Third Proportional to 473,389.50 and 665,856

Step by Step Solution

1. Step 1: Write the proportion equation
   473,389.50 : 665,856 = 665,856 : x
2. Step 2: Convert to fraction form
   473,389.50/665,856 = 665,856/x
3. Step 3: Cross multiply
   473,389.50x = 665,856 × 665,856
4. Step 4: Simplify right side
   473,389.50x = 443,364,212,736
5. Step 5: Solve for x
   x = 443,364,212,736/473,389.50
6. Step 6: Final answer
   x = 936,573.82