Finding the Third Proportional to 770,178 and 1,717,446

Step by Step Solution

1. Step 1: Write the proportion equation
   770,178 : 1,717,446 = 1,717,446 : x
2. Step 2: Convert to fraction form
   770,178/1,717,446 = 1,717,446/x
3. Step 3: Cross multiply
   770,178x = 1,717,446 × 1,717,446
4. Step 4: Simplify right side
   770,178x = 2,949,620,762,916
5. Step 5: Solve for x
   x = 2,949,620,762,916/770,178
6. Step 6: Final answer
   x = 3,829,790.99