Finding the Third Proportional to 58,122 and 123,219

Step by Step Solution

1. Step 1: Write the proportion equation
   58,122 : 123,219 = 123,219 : x
2. Step 2: Convert to fraction form
   58,122/123,219 = 123,219/x
3. Step 3: Cross multiply
   58,122x = 123,219 × 123,219
4. Step 4: Simplify right side
   58,122x = 15,182,921,961
5. Step 5: Solve for x
   x = 15,182,921,961/58,122
6. Step 6: Final answer
   x = 261,225.04