Finding the Third Proportional to 69,894,336 and 109,404,679.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,894,336 : 109,404,679.50 = 109,404,679.50 : x
2. Step 2: Convert to fraction form
   69,894,336/109,404,679.50 = 109,404,679.50/x
3. Step 3: Cross multiply
   69,894,336x = 109,404,679.50 × 109,404,679.50
4. Step 4: Simplify right side
   69,894,336x = 11,969,383,896,497,720
5. Step 5: Solve for x
   x = 11,969,383,896,497,720/69,894,336
6. Step 6: Final answer
   x = 171,249,697.49