Finding the Third Proportional to 453,465 and 685,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   453,465 : 685,300.50 = 685,300.50 : x
2. Step 2: Convert to fraction form
   453,465/685,300.50 = 685,300.50/x
3. Step 3: Cross multiply
   453,465x = 685,300.50 × 685,300.50
4. Step 4: Simplify right side
   453,465x = 469,636,775,300.25
5. Step 5: Solve for x
   x = 469,636,775,300.25/453,465
6. Step 6: Final answer
   x = 1,035,662.68