Finding the Third Proportional to 2,906,148 and 3,989,346

Step by Step Solution

1. Step 1: Write the proportion equation
   2,906,148 : 3,989,346 = 3,989,346 : x
2. Step 2: Convert to fraction form
   2,906,148/3,989,346 = 3,989,346/x
3. Step 3: Cross multiply
   2,906,148x = 3,989,346 × 3,989,346
4. Step 4: Simplify right side
   2,906,148x = 15,914,881,507,716
5. Step 5: Solve for x
   x = 15,914,881,507,716/2,906,148
6. Step 6: Final answer
   x = 5,476,280.46