Finding the Third Proportional to 37,212 and 56,688

Step by Step Solution

1. Step 1: Write the proportion equation
   37,212 : 56,688 = 56,688 : x
2. Step 2: Convert to fraction form
   37,212/56,688 = 56,688/x
3. Step 3: Cross multiply
   37,212x = 56,688 × 56,688
4. Step 4: Simplify right side
   37,212x = 3,213,529,344
5. Step 5: Solve for x
   x = 3,213,529,344/37,212
6. Step 6: Final answer
   x = 86,357.34