Finding the Third Proportional to 139,258,466,538 and 209,035,094,927

Step by Step Solution

1. Step 1: Write the proportion equation
   139,258,466,538 : 209,035,094,927 = 209,035,094,927 : x
2. Step 2: Convert to fraction form
   139,258,466,538/209,035,094,927 = 209,035,094,927/x
3. Step 3: Cross multiply
   139,258,466,538x = 209,035,094,927 × 209,035,094,927
4. Step 4: Simplify right side
   139,258,466,538x = 43,695,670,911,139,900,817,408
5. Step 5: Solve for x
   x = 43,695,670,911,139,900,817,408/139,258,466,538
6. Step 6: Final answer
   x = 313,773,891,077.69