Finding the Third Proportional to 680,944.50 and 1,053,715.50

Step by Step Solution

1. Step 1: Write the proportion equation
   680,944.50 : 1,053,715.50 = 1,053,715.50 : x
2. Step 2: Convert to fraction form
   680,944.50/1,053,715.50 = 1,053,715.50/x
3. Step 3: Cross multiply
   680,944.50x = 1,053,715.50 × 1,053,715.50
4. Step 4: Simplify right side
   680,944.50x = 1,110,316,354,940.25
5. Step 5: Solve for x
   x = 1,110,316,354,940.25/680,944.50
6. Step 6: Final answer
   x = 1,630,553.38