Finding the Third Proportional to 81,810 and 178,182

Step by Step Solution

1. Step 1: Write the proportion equation
   81,810 : 178,182 = 178,182 : x
2. Step 2: Convert to fraction form
   81,810/178,182 = 178,182/x
3. Step 3: Cross multiply
   81,810x = 178,182 × 178,182
4. Step 4: Simplify right side
   81,810x = 31,748,825,124
5. Step 5: Solve for x
   x = 31,748,825,124/81,810
6. Step 6: Final answer
   x = 388,080.00