Finding the Third Proportional to 1,681,512 and 2,561,148

Step by Step Solution

1. Step 1: Write the proportion equation
   1,681,512 : 2,561,148 = 2,561,148 : x
2. Step 2: Convert to fraction form
   1,681,512/2,561,148 = 2,561,148/x
3. Step 3: Cross multiply
   1,681,512x = 2,561,148 × 2,561,148
4. Step 4: Simplify right side
   1,681,512x = 6,559,479,077,904
5. Step 5: Solve for x
   x = 6,559,479,077,904/1,681,512
6. Step 6: Final answer
   x = 3,900,940.99