Finding the Third Proportional to 352,705.50 and 771,669

Step by Step Solution

1. Step 1: Write the proportion equation
   352,705.50 : 771,669 = 771,669 : x
2. Step 2: Convert to fraction form
   352,705.50/771,669 = 771,669/x
3. Step 3: Cross multiply
   352,705.50x = 771,669 × 771,669
4. Step 4: Simplify right side
   352,705.50x = 595,473,045,561
5. Step 5: Solve for x
   x = 595,473,045,561/352,705.50
6. Step 6: Final answer
   x = 1,688,300.99