Finding the Third Proportional to 144,063,506 and 315,449,284

Step by Step Solution

1. Step 1: Write the proportion equation
   144,063,506 : 315,449,284 = 315,449,284 : x
2. Step 2: Convert to fraction form
   144,063,506/315,449,284 = 315,449,284/x
3. Step 3: Cross multiply
   144,063,506x = 315,449,284 × 315,449,284
4. Step 4: Simplify right side
   144,063,506x = 99,508,250,776,112,656
5. Step 5: Solve for x
   x = 99,508,250,776,112,656/144,063,506
6. Step 6: Final answer
   x = 690,724,900.00