Finding the Third Proportional to 78,261 and 168,666

Step by Step Solution

1. Step 1: Write the proportion equation
   78,261 : 168,666 = 168,666 : x
2. Step 2: Convert to fraction form
   78,261/168,666 = 168,666/x
3. Step 3: Cross multiply
   78,261x = 168,666 × 168,666
4. Step 4: Simplify right side
   78,261x = 28,448,219,556
5. Step 5: Solve for x
   x = 28,448,219,556/78,261
6. Step 6: Final answer
   x = 363,504.42