Finding the Third Proportional to 78,468 and 161,070.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,468 : 161,070.50 = 161,070.50 : x
2. Step 2: Convert to fraction form
   78,468/161,070.50 = 161,070.50/x
3. Step 3: Cross multiply
   78,468x = 161,070.50 × 161,070.50
4. Step 4: Simplify right side
   78,468x = 25,943,705,970.25
5. Step 5: Solve for x
   x = 25,943,705,970.25/78,468
6. Step 6: Final answer
   x = 330,627.85