Finding the Third Proportional to 56,059.69 and 86,891.63

Step by Step Solution

1. Step 1: Write the proportion equation
   56,059.69 : 86,891.63 = 86,891.63 : x
2. Step 2: Convert to fraction form
   56,059.69/86,891.63 = 86,891.63/x
3. Step 3: Cross multiply
   56,059.69x = 86,891.63 × 86,891.63
4. Step 4: Simplify right side
   56,059.69x = 7,550,154,495.14
5. Step 5: Solve for x
   x = 7,550,154,495.14/56,059.69
6. Step 6: Final answer
   x = 134,680.64