Finding the Third Proportional to 91,072,272 and 139,898,150

Step by Step Solution

1. Step 1: Write the proportion equation
   91,072,272 : 139,898,150 = 139,898,150 : x
2. Step 2: Convert to fraction form
   91,072,272/139,898,150 = 139,898,150/x
3. Step 3: Cross multiply
   91,072,272x = 139,898,150 × 139,898,150
4. Step 4: Simplify right side
   91,072,272x = 19,571,492,373,422,500
5. Step 5: Solve for x
   x = 19,571,492,373,422,500/91,072,272
6. Step 6: Final answer
   x = 214,900,671.12