Finding the Third Proportional to 1,428,160 and 2,974,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,160 : 2,974,688 = 2,974,688 : x
2. Step 2: Convert to fraction form
   1,428,160/2,974,688 = 2,974,688/x
3. Step 3: Cross multiply
   1,428,160x = 2,974,688 × 2,974,688
4. Step 4: Simplify right side
   1,428,160x = 8,848,768,697,344
5. Step 5: Solve for x
   x = 8,848,768,697,344/1,428,160
6. Step 6: Final answer
   x = 6,195,922.51