Finding the Third Proportional to 658,968 and 1,438,788

Step by Step Solution

1. Step 1: Write the proportion equation
   658,968 : 1,438,788 = 1,438,788 : x
2. Step 2: Convert to fraction form
   658,968/1,438,788 = 1,438,788/x
3. Step 3: Cross multiply
   658,968x = 1,438,788 × 1,438,788
4. Step 4: Simplify right side
   658,968x = 2,070,110,908,944
5. Step 5: Solve for x
   x = 2,070,110,908,944/658,968
6. Step 6: Final answer
   x = 3,141,443.76