Finding the Third Proportional to 594,784.50 and 906,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   594,784.50 : 906,139.50 = 906,139.50 : x
2. Step 2: Convert to fraction form
   594,784.50/906,139.50 = 906,139.50/x
3. Step 3: Cross multiply
   594,784.50x = 906,139.50 × 906,139.50
4. Step 4: Simplify right side
   594,784.50x = 821,088,793,460.25
5. Step 5: Solve for x
   x = 821,088,793,460.25/594,784.50
6. Step 6: Final answer
   x = 1,380,481.15