Finding the Third Proportional to 784,628 and 1,663,417

Step by Step Solution

1. Step 1: Write the proportion equation
   784,628 : 1,663,417 = 1,663,417 : x
2. Step 2: Convert to fraction form
   784,628/1,663,417 = 1,663,417/x
3. Step 3: Cross multiply
   784,628x = 1,663,417 × 1,663,417
4. Step 4: Simplify right side
   784,628x = 2,766,956,115,889
5. Step 5: Solve for x
   x = 2,766,956,115,889/784,628
6. Step 6: Final answer
   x = 3,526,456.00