Finding the Third Proportional to 78,467 and 161,068.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,467 : 161,068.50 = 161,068.50 : x
2. Step 2: Convert to fraction form
   78,467/161,068.50 = 161,068.50/x
3. Step 3: Cross multiply
   78,467x = 161,068.50 × 161,068.50
4. Step 4: Simplify right side
   78,467x = 25,943,061,692.25
5. Step 5: Solve for x
   x = 25,943,061,692.25/78,467
6. Step 6: Final answer
   x = 330,623.85