Finding the Third Proportional to 659,380 and 1,423,880

Step by Step Solution

1. Step 1: Write the proportion equation
   659,380 : 1,423,880 = 1,423,880 : x
2. Step 2: Convert to fraction form
   659,380/1,423,880 = 1,423,880/x
3. Step 3: Cross multiply
   659,380x = 1,423,880 × 1,423,880
4. Step 4: Simplify right side
   659,380x = 2,027,434,254,400
5. Step 5: Solve for x
   x = 2,027,434,254,400/659,380
6. Step 6: Final answer
   x = 3,074,758.49