Finding the Third Proportional to 56,335.50 and 87,358.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,335.50 : 87,358.50 = 87,358.50 : x
2. Step 2: Convert to fraction form
   56,335.50/87,358.50 = 87,358.50/x
3. Step 3: Cross multiply
   56,335.50x = 87,358.50 × 87,358.50
4. Step 4: Simplify right side
   56,335.50x = 7,631,507,522.25
5. Step 5: Solve for x
   x = 7,631,507,522.25/56,335.50
6. Step 6: Final answer
   x = 135,465.34