Finding the Third Proportional to 1,390,345 and 3,046,430

Step by Step Solution

1. Step 1: Write the proportion equation
   1,390,345 : 3,046,430 = 3,046,430 : x
2. Step 2: Convert to fraction form
   1,390,345/3,046,430 = 3,046,430/x
3. Step 3: Cross multiply
   1,390,345x = 3,046,430 × 3,046,430
4. Step 4: Simplify right side
   1,390,345x = 9,280,735,744,900
5. Step 5: Solve for x
   x = 9,280,735,744,900/1,390,345
6. Step 6: Final answer
   x = 6,675,131.53