Finding the Third Proportional to 373,196 and 561,666

Step by Step Solution

1. Step 1: Write the proportion equation
   373,196 : 561,666 = 561,666 : x
2. Step 2: Convert to fraction form
   373,196/561,666 = 561,666/x
3. Step 3: Cross multiply
   373,196x = 561,666 × 561,666
4. Step 4: Simplify right side
   373,196x = 315,468,695,556
5. Step 5: Solve for x
   x = 315,468,695,556/373,196
6. Step 6: Final answer
   x = 845,316.39