Finding the Third Proportional to 51,388,424 and 76,912,140

Step by Step Solution

1. Step 1: Write the proportion equation
   51,388,424 : 76,912,140 = 76,912,140 : x
2. Step 2: Convert to fraction form
   51,388,424/76,912,140 = 76,912,140/x
3. Step 3: Cross multiply
   51,388,424x = 76,912,140 × 76,912,140
4. Step 4: Simplify right side
   51,388,424x = 5,915,477,279,379,600
5. Step 5: Solve for x
   x = 5,915,477,279,379,600/51,388,424
6. Step 6: Final answer
   x = 115,113,031.67