Finding the Third Proportional to 423,372 and 913,217.50

Step by Step Solution

1. Step 1: Write the proportion equation
   423,372 : 913,217.50 = 913,217.50 : x
2. Step 2: Convert to fraction form
   423,372/913,217.50 = 913,217.50/x
3. Step 3: Cross multiply
   423,372x = 913,217.50 × 913,217.50
4. Step 4: Simplify right side
   423,372x = 833,966,202,306.25
5. Step 5: Solve for x
   x = 833,966,202,306.25/423,372
6. Step 6: Final answer
   x = 1,969,818.98