Finding the Third Proportional to 5,902,448 and 8,684,888

Step by Step Solution

1. Step 1: Write the proportion equation
   5,902,448 : 8,684,888 = 8,684,888 : x
2. Step 2: Convert to fraction form
   5,902,448/8,684,888 = 8,684,888/x
3. Step 3: Cross multiply
   5,902,448x = 8,684,888 × 8,684,888
4. Step 4: Simplify right side
   5,902,448x = 75,427,279,572,544
5. Step 5: Solve for x
   x = 75,427,279,572,544/5,902,448
6. Step 6: Final answer
   x = 12,778,982.48