Finding the Third Proportional to 69,390 and 147,501

Step by Step Solution

1. Step 1: Write the proportion equation
   69,390 : 147,501 = 147,501 : x
2. Step 2: Convert to fraction form
   69,390/147,501 = 147,501/x
3. Step 3: Cross multiply
   69,390x = 147,501 × 147,501
4. Step 4: Simplify right side
   69,390x = 21,756,545,001
5. Step 5: Solve for x
   x = 21,756,545,001/69,390
6. Step 6: Final answer
   x = 313,540.06