Finding the Third Proportional to 68,509,665,714.38 and 142,657,387,117.88

Step by Step Solution

1. Step 1: Write the proportion equation
   68,509,665,714.38 : 142,657,387,117.88 = 142,657,387,117.88 : x
2. Step 2: Convert to fraction form
   68,509,665,714.38/142,657,387,117.88 = 142,657,387,117.88/x
3. Step 3: Cross multiply
   68,509,665,714.38x = 142,657,387,117.88 × 142,657,387,117.88
4. Step 4: Simplify right side
   68,509,665,714.38x = 20,351,130,099,300,677,189,632
5. Step 5: Solve for x
   x = 20,351,130,099,300,677,189,632/68,509,665,714.38
6. Step 6: Final answer
   x = 297,054,873,747.99