Finding the Third Proportional to 55,808 and 83,712

Step by Step Solution

1. Step 1: Write the proportion equation
   55,808 : 83,712 = 83,712 : x
2. Step 2: Convert to fraction form
   55,808/83,712 = 83,712/x
3. Step 3: Cross multiply
   55,808x = 83,712 × 83,712
4. Step 4: Simplify right side
   55,808x = 7,007,698,944
5. Step 5: Solve for x
   x = 7,007,698,944/55,808
6. Step 6: Final answer
   x = 125,568