Finding the Third Proportional to 63,507 and 90,364.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,507 : 90,364.50 = 90,364.50 : x
2. Step 2: Convert to fraction form
   63,507/90,364.50 = 90,364.50/x
3. Step 3: Cross multiply
   63,507x = 90,364.50 × 90,364.50
4. Step 4: Simplify right side
   63,507x = 8,165,742,860.25
5. Step 5: Solve for x
   x = 8,165,742,860.25/63,507
6. Step 6: Final answer
   x = 128,580.20