Finding the Third Proportional to 82,131 and 107,842.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,131 : 107,842.50 = 107,842.50 : x
2. Step 2: Convert to fraction form
   82,131/107,842.50 = 107,842.50/x
3. Step 3: Cross multiply
   82,131x = 107,842.50 × 107,842.50
4. Step 4: Simplify right side
   82,131x = 11,630,004,806.25
5. Step 5: Solve for x
   x = 11,630,004,806.25/82,131
6. Step 6: Final answer
   x = 141,603.11