Finding the Third Proportional to 78,064 and 120,828

Step by Step Solution

1. Step 1: Write the proportion equation
   78,064 : 120,828 = 120,828 : x
2. Step 2: Convert to fraction form
   78,064/120,828 = 120,828/x
3. Step 3: Cross multiply
   78,064x = 120,828 × 120,828
4. Step 4: Simplify right side
   78,064x = 14,599,405,584
5. Step 5: Solve for x
   x = 14,599,405,584/78,064
6. Step 6: Final answer
   x = 187,018.42