Finding the Third Proportional to 6,321,780 and 13,654,440

Step by Step Solution

1. Step 1: Write the proportion equation
   6,321,780 : 13,654,440 = 13,654,440 : x
2. Step 2: Convert to fraction form
   6,321,780/13,654,440 = 13,654,440/x
3. Step 3: Cross multiply
   6,321,780x = 13,654,440 × 13,654,440
4. Step 4: Simplify right side
   6,321,780x = 186,443,731,713,600
5. Step 5: Solve for x
   x = 186,443,731,713,600/6,321,780
6. Step 6: Final answer
   x = 29,492,284.09