Finding the Third Proportional to 56,360.81 and 87,388.88

Step by Step Solution

1. Step 1: Write the proportion equation
   56,360.81 : 87,388.88 = 87,388.88 : x
2. Step 2: Convert to fraction form
   56,360.81/87,388.88 = 87,388.88/x
3. Step 3: Cross multiply
   56,360.81x = 87,388.88 × 87,388.88
4. Step 4: Simplify right side
   56,360.81x = 7,636,815,473.77
5. Step 5: Solve for x
   x = 7,636,815,473.77/56,360.81
6. Step 6: Final answer
   x = 135,498.68