Finding the Third Proportional to 69,172 and 147,560

Step by Step Solution

1. Step 1: Write the proportion equation
   69,172 : 147,560 = 147,560 : x
2. Step 2: Convert to fraction form
   69,172/147,560 = 147,560/x
3. Step 3: Cross multiply
   69,172x = 147,560 × 147,560
4. Step 4: Simplify right side
   69,172x = 21,773,953,600
5. Step 5: Solve for x
   x = 21,773,953,600/69,172
6. Step 6: Final answer
   x = 314,779.88