Finding the Third Proportional to 361,619,826.75 and 784,886,789.25

Step by Step Solution

1. Step 1: Write the proportion equation
   361,619,826.75 : 784,886,789.25 = 784,886,789.25 : x
2. Step 2: Convert to fraction form
   361,619,826.75/784,886,789.25 = 784,886,789.25/x
3. Step 3: Cross multiply
   361,619,826.75x = 784,886,789.25 × 784,886,789.25
4. Step 4: Simplify right side
   361,619,826.75x = 616,047,271,939,173,888
5. Step 5: Solve for x
   x = 616,047,271,939,173,888/361,619,826.75
6. Step 6: Final answer
   x = 1,703,577,144.75