Finding the Third Proportional to 774,742.50 and 1,686,672

Step by Step Solution

1. Step 1: Write the proportion equation
   774,742.50 : 1,686,672 = 1,686,672 : x
2. Step 2: Convert to fraction form
   774,742.50/1,686,672 = 1,686,672/x
3. Step 3: Cross multiply
   774,742.50x = 1,686,672 × 1,686,672
4. Step 4: Simplify right side
   774,742.50x = 2,844,862,435,584
5. Step 5: Solve for x
   x = 2,844,862,435,584/774,742.50
6. Step 6: Final answer
   x = 3,672,010.29