Finding the Third Proportional to 201,156 and 418,846.50

Step by Step Solution

1. Step 1: Write the proportion equation
   201,156 : 418,846.50 = 418,846.50 : x
2. Step 2: Convert to fraction form
   201,156/418,846.50 = 418,846.50/x
3. Step 3: Cross multiply
   201,156x = 418,846.50 × 418,846.50
4. Step 4: Simplify right side
   201,156x = 175,432,390,562.25
5. Step 5: Solve for x
   x = 175,432,390,562.25/201,156
6. Step 6: Final answer
   x = 872,121.09