Finding the Third Proportional to 686,902.78 and 1,009,748.53

Step by Step Solution

1. Step 1: Write the proportion equation
   686,902.78 : 1,009,748.53 = 1,009,748.53 : x
2. Step 2: Convert to fraction form
   686,902.78/1,009,748.53 = 1,009,748.53/x
3. Step 3: Cross multiply
   686,902.78x = 1,009,748.53 × 1,009,748.53
4. Step 4: Simplify right side
   686,902.78x = 1,019,592,096,361.53
5. Step 5: Solve for x
   x = 1,019,592,096,361.53/686,902.78
6. Step 6: Final answer
   x = 1,484,332.46