Finding the Third Proportional to 30,991,070 and 67,562,279

Step by Step Solution

1. Step 1: Write the proportion equation
   30,991,070 : 67,562,279 = 67,562,279 : x
2. Step 2: Convert to fraction form
   30,991,070/67,562,279 = 67,562,279/x
3. Step 3: Cross multiply
   30,991,070x = 67,562,279 × 67,562,279
4. Step 4: Simplify right side
   30,991,070x = 4,564,661,543,673,841
5. Step 5: Solve for x
   x = 4,564,661,543,673,841/30,991,070
6. Step 6: Final answer
   x = 147,289,575.47