Finding the Third Proportional to 58,065.19 and 81,767.81

Step by Step Solution

1. Step 1: Write the proportion equation
   58,065.19 : 81,767.81 = 81,767.81 : x
2. Step 2: Convert to fraction form
   58,065.19/81,767.81 = 81,767.81/x
3. Step 3: Cross multiply
   58,065.19x = 81,767.81 × 81,767.81
4. Step 4: Simplify right side
   58,065.19x = 6,685,975,161.04
5. Step 5: Solve for x
   x = 6,685,975,161.04/58,065.19
6. Step 6: Final answer
   x = 115,146.02