Finding the Third Proportional to 20,139 and 43,192.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,139 : 43,192.50 = 43,192.50 : x
2. Step 2: Convert to fraction form
   20,139/43,192.50 = 43,192.50/x
3. Step 3: Cross multiply
   20,139x = 43,192.50 × 43,192.50
4. Step 4: Simplify right side
   20,139x = 1,865,592,056.25
5. Step 5: Solve for x
   x = 1,865,592,056.25/20,139
6. Step 6: Final answer
   x = 92,635.78