Finding the Third Proportional to 85,402,947,061 and 177,874,644,143

Step by Step Solution

1. Step 1: Write the proportion equation
   85,402,947,061 : 177,874,644,143 = 177,874,644,143 : x
2. Step 2: Convert to fraction form
   85,402,947,061/177,874,644,143 = 177,874,644,143/x
3. Step 3: Cross multiply
   85,402,947,061x = 177,874,644,143 × 177,874,644,143
4. Step 4: Simplify right side
   85,402,947,061x = 31,639,389,028,998,883,311,616
5. Step 5: Solve for x
   x = 31,639,389,028,998,883,311,616/85,402,947,061
6. Step 6: Final answer
   x = 370,471,864,470.91