Finding the Third Proportional to 1,215,234 and 2,659,185

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,234 : 2,659,185 = 2,659,185 : x
2. Step 2: Convert to fraction form
   1,215,234/2,659,185 = 2,659,185/x
3. Step 3: Cross multiply
   1,215,234x = 2,659,185 × 2,659,185
4. Step 4: Simplify right side
   1,215,234x = 7,071,264,864,225
5. Step 5: Solve for x
   x = 7,071,264,864,225/1,215,234
6. Step 6: Final answer
   x = 5,818,850.41