Finding the Third Proportional to 612,758 and 1,296,172

Step by Step Solution

1. Step 1: Write the proportion equation
   612,758 : 1,296,172 = 1,296,172 : x
2. Step 2: Convert to fraction form
   612,758/1,296,172 = 1,296,172/x
3. Step 3: Cross multiply
   612,758x = 1,296,172 × 1,296,172
4. Step 4: Simplify right side
   612,758x = 1,680,061,853,584
5. Step 5: Solve for x
   x = 1,680,061,853,584/612,758
6. Step 6: Final answer
   x = 2,741,803.21