Finding the Third Proportional to 668,985 and 953,649.50

Step by Step Solution

1. Step 1: Write the proportion equation
   668,985 : 953,649.50 = 953,649.50 : x
2. Step 2: Convert to fraction form
   668,985/953,649.50 = 953,649.50/x
3. Step 3: Cross multiply
   668,985x = 953,649.50 × 953,649.50
4. Step 4: Simplify right side
   668,985x = 909,447,368,850.25
5. Step 5: Solve for x
   x = 909,447,368,850.25/668,985
6. Step 6: Final answer
   x = 1,359,443.59