Finding the Third Proportional to 196,756 and 428,550

Step by Step Solution

1. Step 1: Write the proportion equation
   196,756 : 428,550 = 428,550 : x
2. Step 2: Convert to fraction form
   196,756/428,550 = 428,550/x
3. Step 3: Cross multiply
   196,756x = 428,550 × 428,550
4. Step 4: Simplify right side
   196,756x = 183,655,102,500
5. Step 5: Solve for x
   x = 183,655,102,500/196,756
6. Step 6: Final answer
   x = 933,415.51