Finding the Third Proportional to 56,875 and 89,212

Step by Step Solution

1. Step 1: Write the proportion equation
   56,875 : 89,212 = 89,212 : x
2. Step 2: Convert to fraction form
   56,875/89,212 = 89,212/x
3. Step 3: Cross multiply
   56,875x = 89,212 × 89,212
4. Step 4: Simplify right side
   56,875x = 7,958,780,944
5. Step 5: Solve for x
   x = 7,958,780,944/56,875
6. Step 6: Final answer
   x = 139,934.61