Finding the Third Proportional to 705,310 and 1,664,696

Step by Step Solution

1. Step 1: Write the proportion equation
   705,310 : 1,664,696 = 1,664,696 : x
2. Step 2: Convert to fraction form
   705,310/1,664,696 = 1,664,696/x
3. Step 3: Cross multiply
   705,310x = 1,664,696 × 1,664,696
4. Step 4: Simplify right side
   705,310x = 2,771,212,772,416
5. Step 5: Solve for x
   x = 2,771,212,772,416/705,310
6. Step 6: Final answer
   x = 3,929,070.58