Finding the Third Proportional to 33,513,990 and 72,318,513

Step by Step Solution

1. Step 1: Write the proportion equation
   33,513,990 : 72,318,513 = 72,318,513 : x
2. Step 2: Convert to fraction form
   33,513,990/72,318,513 = 72,318,513/x
3. Step 3: Cross multiply
   33,513,990x = 72,318,513 × 72,318,513
4. Step 4: Simplify right side
   33,513,990x = 5,229,967,322,531,169
5. Step 5: Solve for x
   x = 5,229,967,322,531,169/33,513,990
6. Step 6: Final answer
   x = 156,053,257.83