Finding the Third Proportional to 686,752.75 and 1,009,574.50

Step by Step Solution

1. Step 1: Write the proportion equation
   686,752.75 : 1,009,574.50 = 1,009,574.50 : x
2. Step 2: Convert to fraction form
   686,752.75/1,009,574.50 = 1,009,574.50/x
3. Step 3: Cross multiply
   686,752.75x = 1,009,574.50 × 1,009,574.50
4. Step 4: Simplify right side
   686,752.75x = 1,019,240,671,050.25
5. Step 5: Solve for x
   x = 1,019,240,671,050.25/686,752.75
6. Step 6: Final answer
   x = 1,484,145.02