Finding the Third Proportional to 139,805,040 and 209,707,584

Step by Step Solution

1. Step 1: Write the proportion equation
   139,805,040 : 209,707,584 = 209,707,584 : x
2. Step 2: Convert to fraction form
   139,805,040/209,707,584 = 209,707,584/x
3. Step 3: Cross multiply
   139,805,040x = 209,707,584 × 209,707,584
4. Step 4: Simplify right side
   139,805,040x = 43,977,270,787,117,056
5. Step 5: Solve for x
   x = 43,977,270,787,117,056/139,805,040
6. Step 6: Final answer
   x = 314,561,412.00