Finding the Third Proportional to 12,929,445 and 28,128,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,929,445 : 28,128,913.50 = 28,128,913.50 : x
2. Step 2: Convert to fraction form
   12,929,445/28,128,913.50 = 28,128,913.50/x
3. Step 3: Cross multiply
   12,929,445x = 28,128,913.50 × 28,128,913.50
4. Step 4: Simplify right side
   12,929,445x = 791,235,774,690,482.25
5. Step 5: Solve for x
   x = 791,235,774,690,482.25/12,929,445
6. Step 6: Final answer
   x = 61,196,422.17