Finding the Third Proportional to 78,231,264 and 169,925,538

Step by Step Solution

1. Step 1: Write the proportion equation
   78,231,264 : 169,925,538 = 169,925,538 : x
2. Step 2: Convert to fraction form
   78,231,264/169,925,538 = 169,925,538/x
3. Step 3: Cross multiply
   78,231,264x = 169,925,538 × 169,925,538
4. Step 4: Simplify right side
   78,231,264x = 28,874,688,464,589,444
5. Step 5: Solve for x
   x = 28,874,688,464,589,444/78,231,264
6. Step 6: Final answer
   x = 369,093,978.39