Finding the Third Proportional to 58,538 and 141,485

Step by Step Solution

1. Step 1: Write the proportion equation
   58,538 : 141,485 = 141,485 : x
2. Step 2: Convert to fraction form
   58,538/141,485 = 141,485/x
3. Step 3: Cross multiply
   58,538x = 141,485 × 141,485
4. Step 4: Simplify right side
   58,538x = 20,018,005,225
5. Step 5: Solve for x
   x = 20,018,005,225/58,538
6. Step 6: Final answer
   x = 341,965.99