Finding the Third Proportional to 81,900 and 123,427.13

Step by Step Solution

1. Step 1: Write the proportion equation
   81,900 : 123,427.13 = 123,427.13 : x
2. Step 2: Convert to fraction form
   81,900/123,427.13 = 123,427.13/x
3. Step 3: Cross multiply
   81,900x = 123,427.13 × 123,427.13
4. Step 4: Simplify right side
   81,900x = 15,234,255,185.77
5. Step 5: Solve for x
   x = 15,234,255,185.77/81,900
6. Step 6: Final answer
   x = 186,010.44