Finding the Third Proportional to 449,290.50 and 977,308.50

Step by Step Solution

1. Step 1: Write the proportion equation
   449,290.50 : 977,308.50 = 977,308.50 : x
2. Step 2: Convert to fraction form
   449,290.50/977,308.50 = 977,308.50/x
3. Step 3: Cross multiply
   449,290.50x = 977,308.50 × 977,308.50
4. Step 4: Simplify right side
   449,290.50x = 955,131,904,172.25
5. Step 5: Solve for x
   x = 955,131,904,172.25/449,290.50
6. Step 6: Final answer
   x = 2,125,867.13