Finding the Third Proportional to 27,788,460,942 and 42,937,778,637

Step by Step Solution

1. Step 1: Write the proportion equation
   27,788,460,942 : 42,937,778,637 = 42,937,778,637 : x
2. Step 2: Convert to fraction form
   27,788,460,942/42,937,778,637 = 42,937,778,637/x
3. Step 3: Cross multiply
   27,788,460,942x = 42,937,778,637 × 42,937,778,637
4. Step 4: Simplify right side
   27,788,460,942x = 1,843,652,834,280,013,561,856
5. Step 5: Solve for x
   x = 1,843,652,834,280,013,561,856/27,788,460,942
6. Step 6: Final answer
   x = 66,345,985,771.87