Finding the Third Proportional to 201,072,555,178 and 299,865,155,055

Step by Step Solution

1. Step 1: Write the proportion equation
   201,072,555,178 : 299,865,155,055 = 299,865,155,055 : x
2. Step 2: Convert to fraction form
   201,072,555,178/299,865,155,055 = 299,865,155,055/x
3. Step 3: Cross multiply
   201,072,555,178x = 299,865,155,055 × 299,865,155,055
4. Step 4: Simplify right side
   201,072,555,178x = 89,919,111,216,159,199,854,592
5. Step 5: Solve for x
   x = 89,919,111,216,159,199,854,592/201,072,555,178
6. Step 6: Final answer
   x = 447,197,336,983.95