Finding the Third Proportional to 10,638,666 and 16,848,654

Step by Step Solution

1. Step 1: Write the proportion equation
   10,638,666 : 16,848,654 = 16,848,654 : x
2. Step 2: Convert to fraction form
   10,638,666/16,848,654 = 16,848,654/x
3. Step 3: Cross multiply
   10,638,666x = 16,848,654 × 16,848,654
4. Step 4: Simplify right side
   10,638,666x = 283,877,141,611,716
5. Step 5: Solve for x
   x = 283,877,141,611,716/10,638,666
6. Step 6: Final answer
   x = 26,683,527.95