Finding the Third Proportional to 3,590,154 and 7,778,457

Step by Step Solution

1. Step 1: Write the proportion equation
   3,590,154 : 7,778,457 = 7,778,457 : x
2. Step 2: Convert to fraction form
   3,590,154/7,778,457 = 7,778,457/x
3. Step 3: Cross multiply
   3,590,154x = 7,778,457 × 7,778,457
4. Step 4: Simplify right side
   3,590,154x = 60,504,393,300,849
5. Step 5: Solve for x
   x = 60,504,393,300,849/3,590,154
6. Step 6: Final answer
   x = 16,852,868.51