Finding the Third Proportional to 56,338 and 86,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,338 : 86,603.50 = 86,603.50 : x
2. Step 2: Convert to fraction form
   56,338/86,603.50 = 86,603.50/x
3. Step 3: Cross multiply
   56,338x = 86,603.50 × 86,603.50
4. Step 4: Simplify right side
   56,338x = 7,500,166,212.25
5. Step 5: Solve for x
   x = 7,500,166,212.25/56,338
6. Step 6: Final answer
   x = 133,128.02