Finding the Third Proportional to 1,387,946 and 2,070,366

Step by Step Solution

1. Step 1: Write the proportion equation
   1,387,946 : 2,070,366 = 2,070,366 : x
2. Step 2: Convert to fraction form
   1,387,946/2,070,366 = 2,070,366/x
3. Step 3: Cross multiply
   1,387,946x = 2,070,366 × 2,070,366
4. Step 4: Simplify right side
   1,387,946x = 4,286,415,373,956
5. Step 5: Solve for x
   x = 4,286,415,373,956/1,387,946
6. Step 6: Final answer
   x = 3,088,315.66