Finding the Third Proportional to 656,142 and 1,364,634

Step by Step Solution

1. Step 1: Write the proportion equation
   656,142 : 1,364,634 = 1,364,634 : x
2. Step 2: Convert to fraction form
   656,142/1,364,634 = 1,364,634/x
3. Step 3: Cross multiply
   656,142x = 1,364,634 × 1,364,634
4. Step 4: Simplify right side
   656,142x = 1,862,225,953,956
5. Step 5: Solve for x
   x = 1,862,225,953,956/656,142
6. Step 6: Final answer
   x = 2,838,144.72