Finding the Third Proportional to 61,878 and 93,090

Step by Step Solution

1. Step 1: Write the proportion equation
   61,878 : 93,090 = 93,090 : x
2. Step 2: Convert to fraction form
   61,878/93,090 = 93,090/x
3. Step 3: Cross multiply
   61,878x = 93,090 × 93,090
4. Step 4: Simplify right side
   61,878x = 8,665,748,100
5. Step 5: Solve for x
   x = 8,665,748,100/61,878
6. Step 6: Final answer
   x = 140,045.70