Finding the Third Proportional to 28,155 and 61,178

Step by Step Solution

1. Step 1: Write the proportion equation
   28,155 : 61,178 = 61,178 : x
2. Step 2: Convert to fraction form
   28,155/61,178 = 61,178/x
3. Step 3: Cross multiply
   28,155x = 61,178 × 61,178
4. Step 4: Simplify right side
   28,155x = 3,742,747,684
5. Step 5: Solve for x
   x = 3,742,747,684/28,155
6. Step 6: Final answer
   x = 132,933.68