Finding the Third Proportional to 78,262.50 and 118,890

Step by Step Solution

1. Step 1: Write the proportion equation
   78,262.50 : 118,890 = 118,890 : x
2. Step 2: Convert to fraction form
   78,262.50/118,890 = 118,890/x
3. Step 3: Cross multiply
   78,262.50x = 118,890 × 118,890
4. Step 4: Simplify right side
   78,262.50x = 14,134,832,100
5. Step 5: Solve for x
   x = 14,134,832,100/78,262.50
6. Step 6: Final answer
   x = 180,607.98