Finding the Third Proportional to 359,528.63 and 780,171.75

Step by Step Solution

1. Step 1: Write the proportion equation
   359,528.63 : 780,171.75 = 780,171.75 : x
2. Step 2: Convert to fraction form
   359,528.63/780,171.75 = 780,171.75/x
3. Step 3: Cross multiply
   359,528.63x = 780,171.75 × 780,171.75
4. Step 4: Simplify right side
   359,528.63x = 608,667,959,498.06
5. Step 5: Solve for x
   x = 608,667,959,498.06/359,528.63
6. Step 6: Final answer
   x = 1,692,961.05