Finding the Third Proportional to 1,681,230 and 3,648,240

Step by Step Solution

1. Step 1: Write the proportion equation
   1,681,230 : 3,648,240 = 3,648,240 : x
2. Step 2: Convert to fraction form
   1,681,230/3,648,240 = 3,648,240/x
3. Step 3: Cross multiply
   1,681,230x = 3,648,240 × 3,648,240
4. Step 4: Simplify right side
   1,681,230x = 13,309,655,097,600
5. Step 5: Solve for x
   x = 13,309,655,097,600/1,681,230
6. Step 6: Final answer
   x = 7,916,617.65