Finding the Third Proportional to 72,916,034 and 111,809,518

Step by Step Solution

1. Step 1: Write the proportion equation
   72,916,034 : 111,809,518 = 111,809,518 : x
2. Step 2: Convert to fraction form
   72,916,034/111,809,518 = 111,809,518/x
3. Step 3: Cross multiply
   72,916,034x = 111,809,518 × 111,809,518
4. Step 4: Simplify right side
   72,916,034x = 12,501,368,315,392,324
5. Step 5: Solve for x
   x = 12,501,368,315,392,324/72,916,034
6. Step 6: Final answer
   x = 171,448,824.48