Finding the Third Proportional to 77,404 and 156,936

Step by Step Solution

1. Step 1: Write the proportion equation
   77,404 : 156,936 = 156,936 : x
2. Step 2: Convert to fraction form
   77,404/156,936 = 156,936/x
3. Step 3: Cross multiply
   77,404x = 156,936 × 156,936
4. Step 4: Simplify right side
   77,404x = 24,628,908,096
5. Step 5: Solve for x
   x = 24,628,908,096/77,404
6. Step 6: Final answer
   x = 318,186.50