Finding the Third Proportional to 31,903.88 and 69,913.13

Step by Step Solution

1. Step 1: Write the proportion equation
   31,903.88 : 69,913.13 = 69,913.13 : x
2. Step 2: Convert to fraction form
   31,903.88/69,913.13 = 69,913.13/x
3. Step 3: Cross multiply
   31,903.88x = 69,913.13 × 69,913.13
4. Step 4: Simplify right side
   31,903.88x = 4,887,845,047.27
5. Step 5: Solve for x
   x = 4,887,845,047.27/31,903.88
6. Step 6: Final answer
   x = 153,205.37