Finding the Third Proportional to 697,470 and 1,478,648

Step by Step Solution

1. Step 1: Write the proportion equation
   697,470 : 1,478,648 = 1,478,648 : x
2. Step 2: Convert to fraction form
   697,470/1,478,648 = 1,478,648/x
3. Step 3: Cross multiply
   697,470x = 1,478,648 × 1,478,648
4. Step 4: Simplify right side
   697,470x = 2,186,399,907,904
5. Step 5: Solve for x
   x = 2,186,399,907,904/697,470
6. Step 6: Final answer
   x = 3,134,758.35