Finding the Third Proportional to 89,731,688 and 194,777,674

Step by Step Solution

1. Step 1: Write the proportion equation
   89,731,688 : 194,777,674 = 194,777,674 : x
2. Step 2: Convert to fraction form
   89,731,688/194,777,674 = 194,777,674/x
3. Step 3: Cross multiply
   89,731,688x = 194,777,674 × 194,777,674
4. Step 4: Simplify right side
   89,731,688x = 37,938,342,288,850,272
5. Step 5: Solve for x
   x = 37,938,342,288,850,272/89,731,688
6. Step 6: Final answer
   x = 422,797,599.54