Finding the Third Proportional to 73,977.50 and 161,796.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,977.50 : 161,796.50 = 161,796.50 : x
2. Step 2: Convert to fraction form
   73,977.50/161,796.50 = 161,796.50/x
3. Step 3: Cross multiply
   73,977.50x = 161,796.50 × 161,796.50
4. Step 4: Simplify right side
   73,977.50x = 26,178,107,412.25
5. Step 5: Solve for x
   x = 26,178,107,412.25/73,977.50
6. Step 6: Final answer
   x = 353,865.80