Finding the Third Proportional to 1,215,186 and 2,659,113

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,186 : 2,659,113 = 2,659,113 : x
2. Step 2: Convert to fraction form
   1,215,186/2,659,113 = 2,659,113/x
3. Step 3: Cross multiply
   1,215,186x = 2,659,113 × 2,659,113
4. Step 4: Simplify right side
   1,215,186x = 7,070,881,946,769
5. Step 5: Solve for x
   x = 7,070,881,946,769/1,215,186
6. Step 6: Final answer
   x = 5,818,765.15