Finding the Third Proportional to 705,298.50 and 1,664,669.25

Step by Step Solution

1. Step 1: Write the proportion equation
   705,298.50 : 1,664,669.25 = 1,664,669.25 : x
2. Step 2: Convert to fraction form
   705,298.50/1,664,669.25 = 1,664,669.25/x
3. Step 3: Cross multiply
   705,298.50x = 1,664,669.25 × 1,664,669.25
4. Step 4: Simplify right side
   705,298.50x = 2,771,123,711,895.56
5. Step 5: Solve for x
   x = 2,771,123,711,895.56/705,298.50
6. Step 6: Final answer
   x = 3,929,008.37