Finding the Third Proportional to 50,364 and 78,340

Step by Step Solution

1. Step 1: Write the proportion equation
   50,364 : 78,340 = 78,340 : x
2. Step 2: Convert to fraction form
   50,364/78,340 = 78,340/x
3. Step 3: Cross multiply
   50,364x = 78,340 × 78,340
4. Step 4: Simplify right side
   50,364x = 6,137,155,600
5. Step 5: Solve for x
   x = 6,137,155,600/50,364
6. Step 6: Final answer
   x = 121,856.00