Finding the Third Proportional to 434,484 and 908,689.50

Step by Step Solution

1. Step 1: Write the proportion equation
   434,484 : 908,689.50 = 908,689.50 : x
2. Step 2: Convert to fraction form
   434,484/908,689.50 = 908,689.50/x
3. Step 3: Cross multiply
   434,484x = 908,689.50 × 908,689.50
4. Step 4: Simplify right side
   434,484x = 825,716,607,410.25
5. Step 5: Solve for x
   x = 825,716,607,410.25/434,484
6. Step 6: Final answer
   x = 1,900,453.43