Finding the Third Proportional to 1,386,645 and 2,980,248

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386,645 : 2,980,248 = 2,980,248 : x
2. Step 2: Convert to fraction form
   1,386,645/2,980,248 = 2,980,248/x
3. Step 3: Cross multiply
   1,386,645x = 2,980,248 × 2,980,248
4. Step 4: Simplify right side
   1,386,645x = 8,881,878,141,504
5. Step 5: Solve for x
   x = 8,881,878,141,504/1,386,645
6. Step 6: Final answer
   x = 6,405,300.67