Finding the Third Proportional to 55,545 and 86,031.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,545 : 86,031.50 = 86,031.50 : x
2. Step 2: Convert to fraction form
   55,545/86,031.50 = 86,031.50/x
3. Step 3: Cross multiply
   55,545x = 86,031.50 × 86,031.50
4. Step 4: Simplify right side
   55,545x = 7,401,418,992.25
5. Step 5: Solve for x
   x = 7,401,418,992.25/55,545
6. Step 6: Final answer
   x = 133,250.86