Finding the Third Proportional to 82,987,809 and 133,339,063.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,987,809 : 133,339,063.50 = 133,339,063.50 : x
2. Step 2: Convert to fraction form
   82,987,809/133,339,063.50 = 133,339,063.50/x
3. Step 3: Cross multiply
   82,987,809x = 133,339,063.50 × 133,339,063.50
4. Step 4: Simplify right side
   82,987,809x = 17,779,305,855,057,032
5. Step 5: Solve for x
   x = 17,779,305,855,057,032/82,987,809
6. Step 6: Final answer
   x = 214,239,971.74