Finding the Third Proportional to 422,829 and 655,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   422,829 : 655,141.50 = 655,141.50 : x
2. Step 2: Convert to fraction form
   422,829/655,141.50 = 655,141.50/x
3. Step 3: Cross multiply
   422,829x = 655,141.50 × 655,141.50
4. Step 4: Simplify right side
   422,829x = 429,210,385,022.25
5. Step 5: Solve for x
   x = 429,210,385,022.25/422,829
6. Step 6: Final answer
   x = 1,015,092.12