Finding the Third Proportional to 81,022.50 and 176,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,022.50 : 176,665.50 = 176,665.50 : x
2. Step 2: Convert to fraction form
   81,022.50/176,665.50 = 176,665.50/x
3. Step 3: Cross multiply
   81,022.50x = 176,665.50 × 176,665.50
4. Step 4: Simplify right side
   81,022.50x = 31,210,698,890.25
5. Step 5: Solve for x
   x = 31,210,698,890.25/81,022.50
6. Step 6: Final answer
   x = 385,210.27