Finding the Third Proportional to 679,945.50 and 1,061,309

Step by Step Solution

1. Step 1: Write the proportion equation
   679,945.50 : 1,061,309 = 1,061,309 : x
2. Step 2: Convert to fraction form
   679,945.50/1,061,309 = 1,061,309/x
3. Step 3: Cross multiply
   679,945.50x = 1,061,309 × 1,061,309
4. Step 4: Simplify right side
   679,945.50x = 1,126,376,793,481
5. Step 5: Solve for x
   x = 1,126,376,793,481/679,945.50
6. Step 6: Final answer
   x = 1,656,569.23