Finding the Third Proportional to 78,862.50 and 122,454

Step by Step Solution

1. Step 1: Write the proportion equation
   78,862.50 : 122,454 = 122,454 : x
2. Step 2: Convert to fraction form
   78,862.50/122,454 = 122,454/x
3. Step 3: Cross multiply
   78,862.50x = 122,454 × 122,454
4. Step 4: Simplify right side
   78,862.50x = 14,994,982,116
5. Step 5: Solve for x
   x = 14,994,982,116/78,862.50
6. Step 6: Final answer
   x = 190,140.84