Finding the Third Proportional to 56,867.06 and 87,039.56

Step by Step Solution

1. Step 1: Write the proportion equation
   56,867.06 : 87,039.56 = 87,039.56 : x
2. Step 2: Convert to fraction form
   56,867.06/87,039.56 = 87,039.56/x
3. Step 3: Cross multiply
   56,867.06x = 87,039.56 × 87,039.56
4. Step 4: Simplify right side
   56,867.06x = 7,575,885,440.19
5. Step 5: Solve for x
   x = 7,575,885,440.19/56,867.06
6. Step 6: Final answer
   x = 133,220.97