Finding the Third Proportional to 658,800 and 1,438,074

Step by Step Solution

1. Step 1: Write the proportion equation
   658,800 : 1,438,074 = 1,438,074 : x
2. Step 2: Convert to fraction form
   658,800/1,438,074 = 1,438,074/x
3. Step 3: Cross multiply
   658,800x = 1,438,074 × 1,438,074
4. Step 4: Simplify right side
   658,800x = 2,068,056,829,476
5. Step 5: Solve for x
   x = 2,068,056,829,476/658,800
6. Step 6: Final answer
   x = 3,139,126.94