Finding the Third Proportional to 621,454 and 959,654.50

Step by Step Solution

1. Step 1: Write the proportion equation
   621,454 : 959,654.50 = 959,654.50 : x
2. Step 2: Convert to fraction form
   621,454/959,654.50 = 959,654.50/x
3. Step 3: Cross multiply
   621,454x = 959,654.50 × 959,654.50
4. Step 4: Simplify right side
   621,454x = 920,936,759,370.25
5. Step 5: Solve for x
   x = 920,936,759,370.25/621,454
6. Step 6: Final answer
   x = 1,481,906.56