Finding the Third Proportional to 5,313,946 and 8,459,638

Step by Step Solution

1. Step 1: Write the proportion equation
   5,313,946 : 8,459,638 = 8,459,638 : x
2. Step 2: Convert to fraction form
   5,313,946/8,459,638 = 8,459,638/x
3. Step 3: Cross multiply
   5,313,946x = 8,459,638 × 8,459,638
4. Step 4: Simplify right side
   5,313,946x = 71,565,475,091,044
5. Step 5: Solve for x
   x = 71,565,475,091,044/5,313,946
6. Step 6: Final answer
   x = 13,467,482.56