Finding the Third Proportional to 31,581,384 and 69,106,308

Step by Step Solution

1. Step 1: Write the proportion equation
   31,581,384 : 69,106,308 = 69,106,308 : x
2. Step 2: Convert to fraction form
   31,581,384/69,106,308 = 69,106,308/x
3. Step 3: Cross multiply
   31,581,384x = 69,106,308 × 69,106,308
4. Step 4: Simplify right side
   31,581,384x = 4,775,681,805,390,864
5. Step 5: Solve for x
   x = 4,775,681,805,390,864/31,581,384
6. Step 6: Final answer
   x = 151,218,255.84