Finding the Third Proportional to 31,987,889 and 69,072,904

Step by Step Solution

1. Step 1: Write the proportion equation
   31,987,889 : 69,072,904 = 69,072,904 : x
2. Step 2: Convert to fraction form
   31,987,889/69,072,904 = 69,072,904/x
3. Step 3: Cross multiply
   31,987,889x = 69,072,904 × 69,072,904
4. Step 4: Simplify right side
   31,987,889x = 4,771,066,066,993,216
5. Step 5: Solve for x
   x = 4,771,066,066,993,216/31,987,889
6. Step 6: Final answer
   x = 149,152,264.06