Finding the Third Proportional to 6,411,436 and 13,538,264

Step by Step Solution

1. Step 1: Write the proportion equation
   6,411,436 : 13,538,264 = 13,538,264 : x
2. Step 2: Convert to fraction form
   6,411,436/13,538,264 = 13,538,264/x
3. Step 3: Cross multiply
   6,411,436x = 13,538,264 × 13,538,264
4. Step 4: Simplify right side
   6,411,436x = 183,284,592,133,696
5. Step 5: Solve for x
   x = 183,284,592,133,696/6,411,436
6. Step 6: Final answer
   x = 28,587,135.88