Finding the Third Proportional to 69,235,890.75 and 109,633,279.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,235,890.75 : 109,633,279.50 = 109,633,279.50 : x
2. Step 2: Convert to fraction form
   69,235,890.75/109,633,279.50 = 109,633,279.50/x
3. Step 3: Cross multiply
   69,235,890.75x = 109,633,279.50 × 109,633,279.50
4. Step 4: Simplify right side
   69,235,890.75x = 12,019,455,973,925,120
5. Step 5: Solve for x
   x = 12,019,455,973,925,120/69,235,890.75
6. Step 6: Final answer
   x = 173,601,521.46