Finding the Third Proportional to 5,426,484 and 8,637,876

Step by Step Solution

1. Step 1: Write the proportion equation
   5,426,484 : 8,637,876 = 8,637,876 : x
2. Step 2: Convert to fraction form
   5,426,484/8,637,876 = 8,637,876/x
3. Step 3: Cross multiply
   5,426,484x = 8,637,876 × 8,637,876
4. Step 4: Simplify right side
   5,426,484x = 74,612,901,791,376
5. Step 5: Solve for x
   x = 74,612,901,791,376/5,426,484
6. Step 6: Final answer
   x = 13,749,769.06