Finding the Third Proportional to 2,406,972 and 5,286,312

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406,972 : 5,286,312 = 5,286,312 : x
2. Step 2: Convert to fraction form
   2,406,972/5,286,312 = 5,286,312/x
3. Step 3: Cross multiply
   2,406,972x = 5,286,312 × 5,286,312
4. Step 4: Simplify right side
   2,406,972x = 27,945,094,561,344
5. Step 5: Solve for x
   x = 27,945,094,561,344/2,406,972
6. Step 6: Final answer
   x = 11,610,062.17