Finding the Third Proportional to 56,512.69 and 86,796.56

Step by Step Solution

1. Step 1: Write the proportion equation
   56,512.69 : 86,796.56 = 86,796.56 : x
2. Step 2: Convert to fraction form
   56,512.69/86,796.56 = 86,796.56/x
3. Step 3: Cross multiply
   56,512.69x = 86,796.56 × 86,796.56
4. Step 4: Simplify right side
   56,512.69x = 7,533,643,261.82
5. Step 5: Solve for x
   x = 7,533,643,261.82/56,512.69
6. Step 6: Final answer
   x = 133,308.88