Finding the Third Proportional to 5,878,144 and 8,905,788

Step by Step Solution

1. Step 1: Write the proportion equation
   5,878,144 : 8,905,788 = 8,905,788 : x
2. Step 2: Convert to fraction form
   5,878,144/8,905,788 = 8,905,788/x
3. Step 3: Cross multiply
   5,878,144x = 8,905,788 × 8,905,788
4. Step 4: Simplify right side
   5,878,144x = 79,313,059,900,944
5. Step 5: Solve for x
   x = 79,313,059,900,944/5,878,144
6. Step 6: Final answer
   x = 13,492,874.60