Finding the Third Proportional to 1,371,188 and 2,978,248

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371,188 : 2,978,248 = 2,978,248 : x
2. Step 2: Convert to fraction form
   1,371,188/2,978,248 = 2,978,248/x
3. Step 3: Cross multiply
   1,371,188x = 2,978,248 × 2,978,248
4. Step 4: Simplify right side
   1,371,188x = 8,869,961,149,504
5. Step 5: Solve for x
   x = 8,869,961,149,504/1,371,188
6. Step 6: Final answer
   x = 6,468,814.74