Finding the Third Proportional to 254,106.50 and 374,120

Step by Step Solution

1. Step 1: Write the proportion equation
   254,106.50 : 374,120 = 374,120 : x
2. Step 2: Convert to fraction form
   254,106.50/374,120 = 374,120/x
3. Step 3: Cross multiply
   254,106.50x = 374,120 × 374,120
4. Step 4: Simplify right side
   254,106.50x = 139,965,774,400
5. Step 5: Solve for x
   x = 139,965,774,400/254,106.50
6. Step 6: Final answer
   x = 550,815.40