Finding the Third Proportional to 72,916,030 and 111,809,512

Step by Step Solution

1. Step 1: Write the proportion equation
   72,916,030 : 111,809,512 = 111,809,512 : x
2. Step 2: Convert to fraction form
   72,916,030/111,809,512 = 111,809,512/x
3. Step 3: Cross multiply
   72,916,030x = 111,809,512 × 111,809,512
4. Step 4: Simplify right side
   72,916,030x = 12,501,366,973,678,144
5. Step 5: Solve for x
   x = 12,501,366,973,678,144/72,916,030
6. Step 6: Final answer
   x = 171,448,815.49