Finding the Third Proportional to 2,978,835 and 6,429,927

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978,835 : 6,429,927 = 6,429,927 : x
2. Step 2: Convert to fraction form
   2,978,835/6,429,927 = 6,429,927/x
3. Step 3: Cross multiply
   2,978,835x = 6,429,927 × 6,429,927
4. Step 4: Simplify right side
   2,978,835x = 41,343,961,225,329
5. Step 5: Solve for x
   x = 41,343,961,225,329/2,978,835
6. Step 6: Final answer
   x = 13,879,238.44