Finding the Third Proportional to 6,978,888 and 10,503,276

Step by Step Solution

1. Step 1: Write the proportion equation
   6,978,888 : 10,503,276 = 10,503,276 : x
2. Step 2: Convert to fraction form
   6,978,888/10,503,276 = 10,503,276/x
3. Step 3: Cross multiply
   6,978,888x = 10,503,276 × 10,503,276
4. Step 4: Simplify right side
   6,978,888x = 110,318,806,732,176
5. Step 5: Solve for x
   x = 110,318,806,732,176/6,978,888
6. Step 6: Final answer
   x = 15,807,504.97