Finding the Third Proportional to 194,548.50 and 423,171

Step by Step Solution

1. Step 1: Write the proportion equation
   194,548.50 : 423,171 = 423,171 : x
2. Step 2: Convert to fraction form
   194,548.50/423,171 = 423,171/x
3. Step 3: Cross multiply
   194,548.50x = 423,171 × 423,171
4. Step 4: Simplify right side
   194,548.50x = 179,073,695,241
5. Step 5: Solve for x
   x = 179,073,695,241/194,548.50
6. Step 6: Final answer
   x = 920,457.86