Finding the Third Proportional to 161,821.50 and 352,047

Step by Step Solution

1. Step 1: Write the proportion equation
   161,821.50 : 352,047 = 352,047 : x
2. Step 2: Convert to fraction form
   161,821.50/352,047 = 352,047/x
3. Step 3: Cross multiply
   161,821.50x = 352,047 × 352,047
4. Step 4: Simplify right side
   161,821.50x = 123,937,090,209
5. Step 5: Solve for x
   x = 123,937,090,209/161,821.50
6. Step 6: Final answer
   x = 765,887.66