Finding the Third Proportional to 359,272.50 and 784,667

Step by Step Solution

1. Step 1: Write the proportion equation
   359,272.50 : 784,667 = 784,667 : x
2. Step 2: Convert to fraction form
   359,272.50/784,667 = 784,667/x
3. Step 3: Cross multiply
   359,272.50x = 784,667 × 784,667
4. Step 4: Simplify right side
   359,272.50x = 615,702,300,889
5. Step 5: Solve for x
   x = 615,702,300,889/359,272.50
6. Step 6: Final answer
   x = 1,713,747.37