Finding the Third Proportional to 139,804,983 and 209,707,492

Step by Step Solution

1. Step 1: Write the proportion equation
   139,804,983 : 209,707,492 = 209,707,492 : x
2. Step 2: Convert to fraction form
   139,804,983/209,707,492 = 209,707,492/x
3. Step 3: Cross multiply
   139,804,983x = 209,707,492 × 209,707,492
4. Step 4: Simplify right side
   139,804,983x = 43,977,232,200,930,064
5. Step 5: Solve for x
   x = 43,977,232,200,930,064/139,804,983
6. Step 6: Final answer
   x = 314,561,264.25