Finding the Third Proportional to 139,258,466,550 and 209,035,094,945

Step by Step Solution

1. Step 1: Write the proportion equation
   139,258,466,550 : 209,035,094,945 = 209,035,094,945 : x
2. Step 2: Convert to fraction form
   139,258,466,550/209,035,094,945 = 209,035,094,945/x
3. Step 3: Cross multiply
   139,258,466,550x = 209,035,094,945 × 209,035,094,945
4. Step 4: Simplify right side
   139,258,466,550x = 43,695,670,918,665,161,670,656
5. Step 5: Solve for x
   x = 43,695,670,918,665,161,670,656/139,258,466,550
6. Step 6: Final answer
   x = 313,773,891,104.69