Finding the Third Proportional to 67,482,189,664.50 and 145,120,216,839

Step by Step Solution

1. Step 1: Write the proportion equation
   67,482,189,664.50 : 145,120,216,839 = 145,120,216,839 : x
2. Step 2: Convert to fraction form
   67,482,189,664.50/145,120,216,839 = 145,120,216,839/x
3. Step 3: Cross multiply
   67,482,189,664.50x = 145,120,216,839 × 145,120,216,839
4. Step 4: Simplify right side
   67,482,189,664.50x = 21,059,877,335,398,380,208,128
5. Step 5: Solve for x
   x = 21,059,877,335,398,380,208,128/67,482,189,664.50
6. Step 6: Final answer
   x = 312,080,527,322.86