Finding the Third Proportional to 164,664,538 and 219,522,892

Step by Step Solution

1. Step 1: Write the proportion equation
   164,664,538 : 219,522,892 = 219,522,892 : x
2. Step 2: Convert to fraction form
   164,664,538/219,522,892 = 219,522,892/x
3. Step 3: Cross multiply
   164,664,538x = 219,522,892 × 219,522,892
4. Step 4: Simplify right side
   164,664,538x = 48,190,300,112,043,664
5. Step 5: Solve for x
   x = 48,190,300,112,043,664/164,664,538
6. Step 6: Final answer
   x = 292,657,427.62