Finding the Third Proportional to 452,691 and 679,090.50

Step by Step Solution

1. Step 1: Write the proportion equation
   452,691 : 679,090.50 = 679,090.50 : x
2. Step 2: Convert to fraction form
   452,691/679,090.50 = 679,090.50/x
3. Step 3: Cross multiply
   452,691x = 679,090.50 × 679,090.50
4. Step 4: Simplify right side
   452,691x = 461,163,907,190.25
5. Step 5: Solve for x
   x = 461,163,907,190.25/452,691
6. Step 6: Final answer
   x = 1,018,716.76