Finding the Third Proportional to 30,992,448 and 72,020,640

Step by Step Solution

1. Step 1: Write the proportion equation
   30,992,448 : 72,020,640 = 72,020,640 : x
2. Step 2: Convert to fraction form
   30,992,448/72,020,640 = 72,020,640/x
3. Step 3: Cross multiply
   30,992,448x = 72,020,640 × 72,020,640
4. Step 4: Simplify right side
   30,992,448x = 5,186,972,586,009,600
5. Step 5: Solve for x
   x = 5,186,972,586,009,600/30,992,448
6. Step 6: Final answer
   x = 167,362,467.98