Finding the Third Proportional to 8,773,353 and 13,638,469.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,773,353 : 13,638,469.50 = 13,638,469.50 : x
2. Step 2: Convert to fraction form
   8,773,353/13,638,469.50 = 13,638,469.50/x
3. Step 3: Cross multiply
   8,773,353x = 13,638,469.50 × 13,638,469.50
4. Step 4: Simplify right side
   8,773,353x = 186,007,850,302,430.25
5. Step 5: Solve for x
   x = 186,007,850,302,430.25/8,773,353
6. Step 6: Final answer
   x = 21,201,455.17