Finding the Third Proportional to 5,421,580 and 7,951,253

Step by Step Solution

1. Step 1: Write the proportion equation
   5,421,580 : 7,951,253 = 7,951,253 : x
2. Step 2: Convert to fraction form
   5,421,580/7,951,253 = 7,951,253/x
3. Step 3: Cross multiply
   5,421,580x = 7,951,253 × 7,951,253
4. Step 4: Simplify right side
   5,421,580x = 63,222,424,270,009
5. Step 5: Solve for x
   x = 63,222,424,270,009/5,421,580
6. Step 6: Final answer
   x = 11,661,254.52