Finding the Third Proportional to 77,587.88 and 109,795.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,587.88 : 109,795.50 = 109,795.50 : x
2. Step 2: Convert to fraction form
   77,587.88/109,795.50 = 109,795.50/x
3. Step 3: Cross multiply
   77,587.88x = 109,795.50 × 109,795.50
4. Step 4: Simplify right side
   77,587.88x = 12,055,051,820.25
5. Step 5: Solve for x
   x = 12,055,051,820.25/77,587.88
6. Step 6: Final answer
   x = 155,372.88