Finding the Third Proportional to 139,815,444 and 209,723,085

Step by Step Solution

1. Step 1: Write the proportion equation
   139,815,444 : 209,723,085 = 209,723,085 : x
2. Step 2: Convert to fraction form
   139,815,444/209,723,085 = 209,723,085/x
3. Step 3: Cross multiply
   139,815,444x = 209,723,085 × 209,723,085
4. Step 4: Simplify right side
   139,815,444x = 43,983,772,381,917,224
5. Step 5: Solve for x
   x = 43,983,772,381,917,224/139,815,444
6. Step 6: Final answer
   x = 314,584,506.00