Finding the Third Proportional to 1,680,912 and 2,515,428

Step by Step Solution

1. Step 1: Write the proportion equation
   1,680,912 : 2,515,428 = 2,515,428 : x
2. Step 2: Convert to fraction form
   1,680,912/2,515,428 = 2,515,428/x
3. Step 3: Cross multiply
   1,680,912x = 2,515,428 × 2,515,428
4. Step 4: Simplify right side
   1,680,912x = 6,327,378,023,184
5. Step 5: Solve for x
   x = 6,327,378,023,184/1,680,912
6. Step 6: Final answer
   x = 3,764,252.99