Finding the Third Proportional to 10,861,447 and 16,402,889

Step by Step Solution

1. Step 1: Write the proportion equation
   10,861,447 : 16,402,889 = 16,402,889 : x
2. Step 2: Convert to fraction form
   10,861,447/16,402,889 = 16,402,889/x
3. Step 3: Cross multiply
   10,861,447x = 16,402,889 × 16,402,889
4. Step 4: Simplify right side
   10,861,447x = 269,054,767,546,321
5. Step 5: Solve for x
   x = 269,054,767,546,321/10,861,447
6. Step 6: Final answer
   x = 24,771,539.88