Finding the Third Proportional to 58,210 and 86,222

Step by Step Solution

1. Step 1: Write the proportion equation
   58,210 : 86,222 = 86,222 : x
2. Step 2: Convert to fraction form
   58,210/86,222 = 86,222/x
3. Step 3: Cross multiply
   58,210x = 86,222 × 86,222
4. Step 4: Simplify right side
   58,210x = 7,434,233,284
5. Step 5: Solve for x
   x = 7,434,233,284/58,210
6. Step 6: Final answer
   x = 127,714.02