Finding the Third Proportional to 28,902 and 63,090

Step by Step Solution

1. Step 1: Write the proportion equation
   28,902 : 63,090 = 63,090 : x
2. Step 2: Convert to fraction form
   28,902/63,090 = 63,090/x
3. Step 3: Cross multiply
   28,902x = 63,090 × 63,090
4. Step 4: Simplify right side
   28,902x = 3,980,348,100
5. Step 5: Solve for x
   x = 3,980,348,100/28,902
6. Step 6: Final answer
   x = 137,718.78