Finding the Third Proportional to 31,931,323 and 69,907,784

Step by Step Solution

1. Step 1: Write the proportion equation
   31,931,323 : 69,907,784 = 69,907,784 : x
2. Step 2: Convert to fraction form
   31,931,323/69,907,784 = 69,907,784/x
3. Step 3: Cross multiply
   31,931,323x = 69,907,784 × 69,907,784
4. Step 4: Simplify right side
   31,931,323x = 4,887,098,263,790,656
5. Step 5: Solve for x
   x = 4,887,098,263,790,656/31,931,323
6. Step 6: Final answer
   x = 153,050,290.58