Finding the Third Proportional to 658,780 and 1,438,032

Step by Step Solution

1. Step 1: Write the proportion equation
   658,780 : 1,438,032 = 1,438,032 : x
2. Step 2: Convert to fraction form
   658,780/1,438,032 = 1,438,032/x
3. Step 3: Cross multiply
   658,780x = 1,438,032 × 1,438,032
4. Step 4: Simplify right side
   658,780x = 2,067,936,033,024
5. Step 5: Solve for x
   x = 2,067,936,033,024/658,780
6. Step 6: Final answer
   x = 3,139,038.88