Finding the Third Proportional to 8,773,357 and 13,638,476

Step by Step Solution

1. Step 1: Write the proportion equation
   8,773,357 : 13,638,476 = 13,638,476 : x
2. Step 2: Convert to fraction form
   8,773,357/13,638,476 = 13,638,476/x
3. Step 3: Cross multiply
   8,773,357x = 13,638,476 × 13,638,476
4. Step 4: Simplify right side
   8,773,357x = 186,008,027,602,576
5. Step 5: Solve for x
   x = 186,008,027,602,576/8,773,357
6. Step 6: Final answer
   x = 21,201,465.71