Finding the Third Proportional to 60,300 and 86,112

Step by Step Solution

1. Step 1: Write the proportion equation
   60,300 : 86,112 = 86,112 : x
2. Step 2: Convert to fraction form
   60,300/86,112 = 86,112/x
3. Step 3: Cross multiply
   60,300x = 86,112 × 86,112
4. Step 4: Simplify right side
   60,300x = 7,415,276,544
5. Step 5: Solve for x
   x = 7,415,276,544/60,300
6. Step 6: Final answer
   x = 122,973.08