Finding the Third Proportional to 99,885,142,447 and 144,316,781,874

Step by Step Solution

1. Step 1: Write the proportion equation
   99,885,142,447 : 144,316,781,874 = 144,316,781,874 : x
2. Step 2: Convert to fraction form
   99,885,142,447/144,316,781,874 = 144,316,781,874/x
3. Step 3: Cross multiply
   99,885,142,447x = 144,316,781,874 × 144,316,781,874
4. Step 4: Simplify right side
   99,885,142,447x = 20,827,333,530,467,694,542,848
5. Step 5: Solve for x
   x = 20,827,333,530,467,694,542,848/99,885,142,447
6. Step 6: Final answer
   x = 208,512,828,036.65