Finding the Third Proportional to 711,189 and 1,555,158

Step by Step Solution

1. Step 1: Write the proportion equation
   711,189 : 1,555,158 = 1,555,158 : x
2. Step 2: Convert to fraction form
   711,189/1,555,158 = 1,555,158/x
3. Step 3: Cross multiply
   711,189x = 1,555,158 × 1,555,158
4. Step 4: Simplify right side
   711,189x = 2,418,516,404,964
5. Step 5: Solve for x
   x = 2,418,516,404,964/711,189
6. Step 6: Final answer
   x = 3,400,666.22