Finding the Third Proportional to 171,980,054.72 and 262,971,889.88

Step by Step Solution

1. Step 1: Write the proportion equation
   171,980,054.72 : 262,971,889.88 = 262,971,889.88 : x
2. Step 2: Convert to fraction form
   171,980,054.72/262,971,889.88 = 262,971,889.88/x
3. Step 3: Cross multiply
   171,980,054.72x = 262,971,889.88 × 262,971,889.88
4. Step 4: Simplify right side
   171,980,054.72x = 69,154,214,864,429,128
5. Step 5: Solve for x
   x = 69,154,214,864,429,128/171,980,054.72
6. Step 6: Final answer
   x = 402,106,017.34