Finding the Third Proportional to 329,115,030 and 685,470,716

Step by Step Solution

1. Step 1: Write the proportion equation
   329,115,030 : 685,470,716 = 685,470,716 : x
2. Step 2: Convert to fraction form
   329,115,030/685,470,716 = 685,470,716/x
3. Step 3: Cross multiply
   329,115,030x = 685,470,716 × 685,470,716
4. Step 4: Simplify right side
   329,115,030x = 469,870,102,493,552,640
5. Step 5: Solve for x
   x = 469,870,102,493,552,640/329,115,030
6. Step 6: Final answer
   x = 1,427,677,436.95