Finding the Third Proportional to 687,276 and 1,510,047

Step by Step Solution

1. Step 1: Write the proportion equation
   687,276 : 1,510,047 = 1,510,047 : x
2. Step 2: Convert to fraction form
   687,276/1,510,047 = 1,510,047/x
3. Step 3: Cross multiply
   687,276x = 1,510,047 × 1,510,047
4. Step 4: Simplify right side
   687,276x = 2,280,241,942,209
5. Step 5: Solve for x
   x = 2,280,241,942,209/687,276
6. Step 6: Final answer
   x = 3,317,796.55