Finding the Third Proportional to 39,364,224 and 55,409,280

Step by Step Solution

1. Step 1: Write the proportion equation
   39,364,224 : 55,409,280 = 55,409,280 : x
2. Step 2: Convert to fraction form
   39,364,224/55,409,280 = 55,409,280/x
3. Step 3: Cross multiply
   39,364,224x = 55,409,280 × 55,409,280
4. Step 4: Simplify right side
   39,364,224x = 3,070,188,310,118,400
5. Step 5: Solve for x
   x = 3,070,188,310,118,400/39,364,224
6. Step 6: Final answer
   x = 77,994,381.65