Finding the Third Proportional to 105,819,604 and 215,890,674

Step by Step Solution

1. Step 1: Write the proportion equation
   105,819,604 : 215,890,674 = 215,890,674 : x
2. Step 2: Convert to fraction form
   105,819,604/215,890,674 = 215,890,674/x
3. Step 3: Cross multiply
   105,819,604x = 215,890,674 × 215,890,674
4. Step 4: Simplify right side
   105,819,604x = 46,608,783,120,174,272
5. Step 5: Solve for x
   x = 46,608,783,120,174,272/105,819,604
6. Step 6: Final answer
   x = 440,455,089.21