Finding the Third Proportional to 31,987,887 and 69,072,900

Step by Step Solution

1. Step 1: Write the proportion equation
   31,987,887 : 69,072,900 = 69,072,900 : x
2. Step 2: Convert to fraction form
   31,987,887/69,072,900 = 69,072,900/x
3. Step 3: Cross multiply
   31,987,887x = 69,072,900 × 69,072,900
4. Step 4: Simplify right side
   31,987,887x = 4,771,065,514,410,000
5. Step 5: Solve for x
   x = 4,771,065,514,410,000/31,987,887
6. Step 6: Final answer
   x = 149,152,256.12