Finding the Third Proportional to 81,759,620 and 178,034,440

Step by Step Solution

1. Step 1: Write the proportion equation
   81,759,620 : 178,034,440 = 178,034,440 : x
2. Step 2: Convert to fraction form
   81,759,620/178,034,440 = 178,034,440/x
3. Step 3: Cross multiply
   81,759,620x = 178,034,440 × 178,034,440
4. Step 4: Simplify right side
   81,759,620x = 31,696,261,826,113,600
5. Step 5: Solve for x
   x = 31,696,261,826,113,600/81,759,620
6. Step 6: Final answer
   x = 387,676,237.07