Finding the Third Proportional to 56,403 and 87,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,403 : 87,196.50 = 87,196.50 : x
2. Step 2: Convert to fraction form
   56,403/87,196.50 = 87,196.50/x
3. Step 3: Cross multiply
   56,403x = 87,196.50 × 87,196.50
4. Step 4: Simplify right side
   56,403x = 7,603,229,612.25
5. Step 5: Solve for x
   x = 7,603,229,612.25/56,403
6. Step 6: Final answer
   x = 134,801.87