Finding the Third Proportional to 323,870,584.50 and 705,244,689

Step by Step Solution

1. Step 1: Write the proportion equation
   323,870,584.50 : 705,244,689 = 705,244,689 : x
2. Step 2: Convert to fraction form
   323,870,584.50/705,244,689 = 705,244,689/x
3. Step 3: Cross multiply
   323,870,584.50x = 705,244,689 × 705,244,689
4. Step 4: Simplify right side
   323,870,584.50x = 497,370,071,362,706,752
5. Step 5: Solve for x
   x = 497,370,071,362,706,752/323,870,584.50
6. Step 6: Final answer
   x = 1,535,706,220.84