Finding the Third Proportional to 139,258,466,546 and 209,035,094,939

Step by Step Solution

1. Step 1: Write the proportion equation
   139,258,466,546 : 209,035,094,939 = 209,035,094,939 : x
2. Step 2: Convert to fraction form
   139,258,466,546/209,035,094,939 = 209,035,094,939/x
3. Step 3: Cross multiply
   139,258,466,546x = 209,035,094,939 × 209,035,094,939
4. Step 4: Simplify right side
   139,258,466,546x = 43,695,670,916,156,741,386,240
5. Step 5: Solve for x
   x = 43,695,670,916,156,741,386,240/139,258,466,546
6. Step 6: Final answer
   x = 313,773,891,095.69