Finding the Third Proportional to 5,420,230 and 8,397,646

Step by Step Solution

1. Step 1: Write the proportion equation
   5,420,230 : 8,397,646 = 8,397,646 : x
2. Step 2: Convert to fraction form
   5,420,230/8,397,646 = 8,397,646/x
3. Step 3: Cross multiply
   5,420,230x = 8,397,646 × 8,397,646
4. Step 4: Simplify right side
   5,420,230x = 70,520,458,341,316
5. Step 5: Solve for x
   x = 70,520,458,341,316/5,420,230
6. Step 6: Final answer
   x = 13,010,602.57