Finding the Third Proportional to 3,087,210 and 7,215,015

Step by Step Solution

1. Step 1: Write the proportion equation
   3,087,210 : 7,215,015 = 7,215,015 : x
2. Step 2: Convert to fraction form
   3,087,210/7,215,015 = 7,215,015/x
3. Step 3: Cross multiply
   3,087,210x = 7,215,015 × 7,215,015
4. Step 4: Simplify right side
   3,087,210x = 52,056,441,450,225
5. Step 5: Solve for x
   x = 52,056,441,450,225/3,087,210
6. Step 6: Final answer
   x = 16,861,969.69