Finding the Third Proportional to 67,897,387,988 and 142,830,995,776

Step by Step Solution

1. Step 1: Write the proportion equation
   67,897,387,988 : 142,830,995,776 = 142,830,995,776 : x
2. Step 2: Convert to fraction form
   67,897,387,988/142,830,995,776 = 142,830,995,776/x
3. Step 3: Cross multiply
   67,897,387,988x = 142,830,995,776 × 142,830,995,776
4. Step 4: Simplify right side
   67,897,387,988x = 20,400,693,354,363,728,429,056
5. Step 5: Solve for x
   x = 20,400,693,354,363,728,429,056/67,897,387,988
6. Step 6: Final answer
   x = 300,463,596,007.10